Business: Does jobless life liberate or enslave?

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Cell cycle is a 4-stage process that takes place in a cell as the cell grows and divides. Each complete cell division will result in two daughter cells. The four stages of cell division are Gap 1 ( G₁ phase ), Synthesis (S phase), Gap 2 ( G₂ phase ) and mitosis. Figure 3 Figure 3 - The G₁, S and G₂ phases are also known as interphase. The process of mitosis and cytokinesis are also called M phase. Stages of cell division Mitosis Mitosis is a process where a single cell divides to form two new identical daughter cells. The two daughter cells contain the same number of chromosomes and genetic content as their parent cell. Mitosis can be divided into 4 phases: Prophase Metaphase Anaphase Telophase Figure 4 Figure 4 - 1. During prophase, chromatin condenses and becomes tightly coiled to form chromosome structure. Each chromosome consists of two sister chromatids joined together at the centromere. At the end of prophase, nucleolus disappear and nuclear membrane disintegrates. Figure 5 Figure 5 - 2. Metaphase follows after prophase. Centrioles migrate to the opposite poles of the cell. The mitotic spindle/spindle fibres are fully formed. All the chromosomes are lined up randomly at the metaphase/equatorial plate. Metaphase ends when the centromeres divide. Figure 6 Figure 6 - 3. Anaphase begins when the sister chromatids separate at the centromere. Shortening of the spindle fibres pull the sister chromatids apart to the opposite poles. The separated chromatids are referred to as daughter chromosomes. Anaphase ends when the chromosomes reach the poles of the cell. Figure 7 Figure 7 - 4. Telophase begins when the sets of chromosomes reach the opposite poles of the cell respectively. The chromosomes then start to uncoil to become their original fine chromatin threads again. Nucleoli and nuclear membrane are reformed. Spindle fibres disappear and the process of mitosis is now complete. Cytokinesis follows after the telophase stage. The Differences between Mitosis and Cytokinesis in Animal and Plant Cells In plant cells, the spindle fibres form even though they do not have centrioles. The differences in the cytokinesis process in animal and plant cells can be seen in the figures below. Figure 8 Figure 8 - 1. In animal cells, the microfilaments in the cytoplasm contract pull a ring of plasma membrane inwards. The cytoplasm is constricted in the middle of the cell between two nuclei. Figure 9 Figure 9 - 2. The formation of cleavage furrow pinches at the equator of the cell. Figure 10 Figure 10 - 3. The cleavage furrow deepens progressively until the cell separates, forming two daughter cells. Figure 11 Figure 11 - 1. In plant cells, membrane-enclosed vesicles form and gather at the equator of the cell. Figure 12 Figure 12. - 2. The vesicles join together to form a cell plate. Figure 13 Figure 13 - 3. The cell plate divides the cell into two daughter cells. Cellulose produced by the cell strengthens the newly formed cell wall. The Necessity of Mitosis Controlled mitosis is important because the genetic information carried by the chromosomes is necessary for proper functioning of an organism. Mitosis is important in cell repair and regeneration. Here are some examples where mitosis plays an important role: Lizards grow new tail if their tails break Starfish replaces lost arms by mitosis Liver cells divide to replace damaged and injured tissues Stem cells culture to produce meats Animal cloning (Dolly, the sheep)

bio Genetics is the study of heredity and how traits are passed from parents to offspring. Gregor Mendel is known as the “Father of Genetics.” Why did Mendel use pea plants? * Easy to grow * Short generation time * Many visible traits * Can self-pollinate or cross-pollinate * Produce many offspring Examples of traits studied: * Flower colour * Seed shape * Plant height ⸻ VOCABULARY Gene * A segment of DNA that controls a trait. Allele * Different forms of the same gene. Example: P = purple flowers p = white flowers Dominant Allele * Expressed whenever it is present. * Represented by a capital letter. Example: P = purple Recessive Allele * Only expressed when two copies are present. * Represented by a lowercase letter. Example: p = white Genotype * Genetic makeup of an organism. Examples: PP Pp pp Phenotype * Physical appearance of an organism. Examples: Purple flower White flower Homozygous * Two identical alleles. Examples: PP pp Heterozygous * Two different alleles. Example: Pp Pure Breeding * Homozygous for a trait. Gamete * Sex cell (sperm or egg). ⸻ MENDEL’S LAWS Law of Dominance * A dominant allele masks a recessive allele. Example: Pp = Purple flower Law of Segregation * Alleles separate during gamete formation. * Each gamete receives only one allele. Example: Parent = Pp Gametes: P p Law of Independent Assortment * Different genes assort independently during meiosis. ⸻ MONOHYBRID CROSSES A monohybrid cross studies one trait. Example: P = Purple p = White Cross: Pp × Pp Punnett Square INCOMPLETE DOMINANCE Neither allele completely dominates. Example: Snapdragons RR = Red WW = White RW = Pink Cross: RW × RW Genotype Ratio: 1 RR : 2 RW : 1 WW Phenotype Ratio: 1 Red : 2 Pink : 1 White CODOMINANCE Both alleles are expressed equally. Example: AB Blood Type Genotype: IAIB Phenotype: AB MULTIPLE ALLELES More than two alleles exist in a population. Example: ABO Blood Group Alleles: IA IB i BLOOD TYPES Type A Genotypes: IAIA or IAi Type B Genotypes: IBIB or IBi Type AB Genotype: IAIB Type O Genotype: ii Can Type A and Type B Parents Have a Type O Child? Yes. If: Father = IAi Mother = IBi Possible Blood Types: AB A B O CELL CYCLE Purpose: * Growth * Repair * Replacement of cells Stages: G1 S G2 Mitosis Cytokinesis INTERPHASE G1 Phase Cell grows and carries out normal functions. S Phase DNA replication occurs. G2 Phase Cell prepares for division. MITOSIS Purpose: Growth and repair. Produces: 2 genetically identical diploid cells. PROPHASE Events: * Chromosomes condense * Nuclear membrane disappears * Nucleolus disappears * Spindle fibres form METAPHASE Events: * Chromosomes line up at the equator ANAPHASE Events: * Sister chromatids separate TELOPHASE Events: * Nuclear membranes reform * Chromosomes uncoil CYTOKINESIS Division of the cytoplasm. Animal Cells: Cleavage furrow forms. Plant Cells: Cell plate forms. CHROMOSOME STRUCTURE Chromosome consists of: * Two sister chromatids * One centromere DIPLOID VS HAPLOID Diploid (2n) * Two sets of chromosomes * Human body cells * 46 chromosomes Haploid (n) * One set of chromosomes * Human gametes * 23 chromosomes HOMOLOGOUS CHROMOSOMES Chromosome pairs that: * Carry the same genes * One comes from the mother * One comes from the father Humans have 23 homologous pairs. MEIOSIS Purpose: Produce gametes. Produces: 4 genetically unique haploid cells. MEIOSIS I Separates homologous chromosomes. CROSSING OVER Occurs during Prophase I. Definition: Exchange of DNA between homologous chromosomes. Importance: Creates genetic variation. RANDOM ASSORTMENT Occurs during Metaphase I. Definition: Homologous pairs line up randomly. Importance: Creates unique chromosome combinations. MEIOSIS II Separates sister chromatids. MITOSIS VS MEIOSIS Mitosis * 2 cells produced * Diploid * Genetically identical * Growth and repair Meiosis * 4 cells produced * Haploid * Genetically different * Produces gametes NONDISJUNCTION Failure of chromosomes to separate properly during meiosis. Can result in extra or missing chromosomes. DOWN SYNDROME Cause: Extra chromosome 21. Chromosome Number: 47 Usually caused by nondisjunction during meiosis. DNA DNA = Deoxyribonucleic Acid Shape: Double Helix Function: Stores genetic information. NUCLEOTIDE Three Components: * Phosphate Group * Deoxyribose Sugar * Nitrogenous Base NITROGENOUS BASES Adenine (A) Thymine (T) Cytosine (C) Guanine (G) COMPLEMENTARY BASE PAIRING A pairs with T C pairs with G DNA REPLICATION Purpose: Make identical copies of DNA. Location: Nucleus Result: Two identical DNA molecules. TRANSCRIPTION Purpose: Create mRNA from DNA. Location: Nucleus DNA → mRNA Remember: RNA uses Uracil (U) instead of Thymine (T). TRANSLATION Purpose: Make proteins. Location: Ribosome mRNA is read and amino acids are joined together to form a protein. MUTATIONS A mutation is a change in DNA sequence. Types: * Deletion * Duplication * Inversion * Translocation DELETION DNA segment removed. DUPLICATION DNA segment repeated. INVERSION DNA segment reversed. TRANSLOCATION DNA segment moves to another chromosome. SEX-LINKED TRAITS Traits located on sex chromosomes. Most are located on the X chromosome. RED-GREEN COLOUR BLINDNESS Inheritance: X-linked recessive. XC = Normal Vision Xc = Colour Blind Male: XcY Colour blind boys inherit the allele from their mother because fathers pass a Y chromosome to their sons. TAY-SACHS DISEASE Cause: Missing enzyme that breaks down lipids in nerve cells. Inheritance: Autosomal recessive. Treatment: No cure currently available. SICKLE CELL ANEMIA Cause: Mutation in hemoglobin gene. Effects: * Sickle-shaped red blood cells * Reduced oxygen transport * Blocked blood vessels Inheritance: Autosomal recessive. HUNTINGTON’S DISEASE Cause: Dominant mutation. Effects: * Nervous system degeneration * Loss of motor control * Cognitive decline Inheritance: Autosomal dominant. KARYOTYPE A photograph of chromosomes arranged in pairs. Used to: * Determine sex * Detect chromosome abnormalities * Diagnose genetic disorders PEDIGREE A family tree used to track inheritance patterns. Symbols: Square = Male Circle = Female Shaded = Has trait CLONING Producing genetically identical organisms. Uses: * Research * Agriculture * Medicine * Conservation GENETIC COUNSELLING Provides information about: * Inherited disorders * Family risk * Testing options AMNIOCENTESIS Prenatal test in which amniotic fluid is sampled and fetal cells are analyzed. Can detect: * Genetic disorders * Chromosomal disorders GMOs Genetically Modified Organisms. Definition: Organisms whose DNA has been altered through biotechnology. Advantages: * Increased crop yield * Disease resistance * Pest resistance Disadvantages: * Ethical concerns * Environmental concerns DNA REPLICATION → TRANSCRIPTION → TRANSLATION DNA (Nucleus) ↓ Replication DNA Copy DNA ↓ Transcription mRNA mRNA ↓ Translation Protein Final Product: Protein RESPIRATORY SYSTEM Function: * Brings oxygen into the body * Removes carbon dioxide * Works with the circulatory system to supply cells with oxygen Why do organisms require oxygen and produce carbon dioxide? Oxygen is required for cellular respiration. Cellular Respiration: Glucose + Oxygen → Energy (ATP) + Carbon Dioxide + Water Cells use oxygen to release energy from food. Carbon dioxide is produced as a waste product and must be removed. ⸻ PATHWAY OF AIR Nasal Cavity ↓ Pharynx ↓ Larynx ↓ Trachea ↓ Bronchi ↓ Bronchioles ↓ Alveoli ⸻ NASAL CAVITY Functions: * Warms air * Moistens air * Filters air Nasal Hairs: * Trap large particles Mucus: * Traps dust and microorganisms Blood Capillaries: * Warm incoming air ⸻ PHARYNX Common passageway for: * Air * Food Also called the throat. ⸻ UVULA Functions: * Prevents food from entering nasal cavity * Helps with speech ⸻ EPIGLOTTIS Functions: * Covers trachea during swallowing * Prevents choking ⸻ LARYNX Also called the voice box. Contains vocal cords. ⸻ TRACHEA Also called the windpipe. Contains cartilage rings that prevent collapse. Lined with: * Cilia * Mucus ⸻ CILIA Tiny hair-like structures. Function: * Sweep mucus upward toward throat ⸻ BRONCHI Two branches of the trachea leading to lungs. Right Bronchus → Right Lung Left Bronchus → Left Lung ⸻ BRONCHIOLES Smaller branches inside lungs. Lead to alveoli. ⸻ ALVEOLI Tiny air sacs. Site of gas exchange. Adaptations: * Thin walls * Moist surface * Large surface area * Rich blood supply Gas Exchange: Oxygen moves: Alveoli → Blood Carbon Dioxide moves: Blood → Alveoli By diffusion. ⸻ BREATHING MECHANICS Two main muscles: 1. Diaphragm 2. Intercostal Muscles ⸻ INHALATION (INSPIRATION) Diaphragm: * Contracts * Moves downward Intercostal Muscles: * Contract * Lift ribs upward Result: * Chest cavity volume increases * Pressure decreases * Air enters lungs ⸻ EXHALATION (EXPIRATION) Diaphragm: * Relaxes * Moves upward Intercostal Muscles: * Relax Result: * Chest cavity volume decreases * Pressure increases * Air leaves lungs ⸻ MEDULLA OBLONGATA Located in the brainstem. Function: * Controls breathing rate Responds to: * Carbon dioxide levels More CO₂: * Faster breathing Less CO₂: * Slower breathing ⸻ LUNG VOLUMES Tidal Volume * Normal amount of air breathed in and out Inspiratory Reserve Volume * Extra air inhaled after normal breath Expiratory Reserve Volume * Extra air exhaled after normal breath Residual Volume * Air remaining in lungs after maximum exhalation Vital Capacity * Maximum amount of air exhaled after deepest breath Total Lung Capacity * Total amount of air lungs can hold ⸻ CIRCULATORY SYSTEM Functions: * Transport oxygen * Transport nutrients * Remove wastes * Maintain homeostasis * Transport hormones Humans have a CLOSED circulatory system. Blood remains inside vessels. ⸻ BLOOD VESSELS ARTERIES Function: * Carry blood away from heart Characteristics: * Thick walls * High pressure * Small lumen * No valves Usually oxygen-rich Exception: Pulmonary artery ⸻ VEINS Function: * Carry blood toward heart Characteristics: * Thin walls * Low pressure * Large lumen * Valves present Usually oxygen-poor Exception: Pulmonary vein ⸻ CAPILLARIES Smallest blood vessels. Functions: * Gas exchange * Nutrient exchange * Waste exchange Walls are one cell thick. ⸻ HEART STRUCTURE Blood Flow: Body ↓ Vena Cava ↓ Right Atrium ↓ Right Ventricle ↓ Pulmonary Artery ↓ Lungs ↓ Pulmonary Vein ↓ Left Atrium ↓ Left Ventricle ↓ Aorta ↓ Body ⸻ HEART CHAMBERS Right Atrium * Receives deoxygenated blood Right Ventricle * Pumps blood to lungs Left Atrium * Receives oxygenated blood Left Ventricle * Pumps blood to body ⸻ SEPTUM Wall separating left and right sides of heart. Prevents mixing of blood. ⸻ HEART VALVES Function: * Prevent backflow of blood Types: Atrioventricular (AV) Valves Pulmonary Semilunar Valve Aortic Semilunar Valve ⸻ SA NODE Sinoatrial Node Known as: * Natural pacemaker Initiates heartbeat. ⸻ AV NODE Atrioventricular Node Receives signal from SA node. Delays impulse slightly. Allows ventricles to fill before contraction. ⸻ BLOOD Components: 1. Plasma 2. Red Blood Cells 3. White Blood Cells 4. Platelets ⸻ PLASMA Liquid component of blood. Functions: * Transport nutrients * Transport hormones * Transport wastes ⸻ RED BLOOD CELLS (ERYTHROCYTES) Function: * Carry oxygen Contain: * Hemoglobin ⸻ HEMOGLOBIN Protein in red blood cells. Function: * Binds oxygen Allows oxygen transport. ⸻ WHITE BLOOD CELLS (LEUKOCYTES) Function: * Fight infection * Defend body Part of immune system. ⸻ PLATELETS Function: * Blood clotting Prevent blood loss. ⸻ BLOOD PRESSURE Force of blood against artery walls. Measured using: Sphygmomanometer Example: 120/80 120 = Systolic Pressure 80 = Diastolic Pressure ⸻ SYSTOLIC PRESSURE Pressure when heart contracts. ⸻ DIASTOLIC PRESSURE Pressure when heart relaxes. ⸻ HYPERTENSION High blood pressure. Can increase risk of: * Stroke * Heart attack * Kidney disease ⸻ STROKE VOLUME Amount of blood pumped per heartbeat. ⸻ CARDIAC OUTPUT Amount of blood pumped per minute. Formula: Cardiac Output = Heart Rate × Stroke Volume ⸻ ECG Electrocardiogram Measures electrical activity of heart. Used to detect: * Irregular heartbeat * Heart damage ⸻ PULMONARY CIRCULATION Heart → Lungs → Heart Purpose: * Oxygenate blood ⸻ SYSTEMIC CIRCULATION Heart → Body → Heart Purpose: * Deliver oxygen to tissues ⸻ HOMEOSTASIS DURING EXERCISE Body responds by: * Increasing heart rate * Increasing breathing rate * Increasing cardiac output * Redirecting blood to muscles * Sweating to cool body Purpose: Maintain stable internal conditions. ⸻ DIGESTIVE SYSTEM Functions: * Break down food * Absorb nutrients * Eliminate waste ⸻ DIGESTIVE TRACT Mouth ↓ Pharynx ↓ Esophagus ↓ Stomach ↓ Small Intestine ↓ Large Intestine ↓ Rectum ↓ Anus ⸻ MECHANICAL DIGESTION Physical breakdown of food. Examples: * Chewing * Churning ⸻ CHEMICAL DIGESTION Chemical breakdown of food using enzymes. Examples: * Amylase * Pepsin ⸻ SALIVA Functions: 1. Moistens food 2. Contains amylase Amylase begins carbohydrate digestion. ⸻ TONGUE Functions: 1. Forms bolus 2. Pushes food for swallowing ⸻ ESOPHAGUS Moves food to stomach. Uses: Peristalsis ⸻ PERISTALSIS Wave-like muscular contractions. Move food through digestive tract. ⸻ STOMACH Functions: * Stores food * Mixes food * Begins protein digestion Produces: * HCl * Pepsin * Mucus ⸻ HCl Hydrochloric Acid Functions: * Kills bacteria * Activates pepsin ⸻ PEPSIN Function: * Digests proteins ⸻ MUCUS Function: * Protects stomach lining ⸻ CHYME Semi-liquid food mixture leaving stomach. ⸻ HEARTBURN Cause: Stomach acid enters esophagus. Usually caused by weakened cardiac sphincter. ⸻ SMALL INTESTINE Main site of: * Digestion * Absorption Adaptations: * Long length * Folds * Villi * Microvilli Large surface area increases absorption. ⸻ DUODENUM First section. Functions: * Receives bile * Receives pancreatic enzymes * Most chemical digestion ⸻ JEJUNUM Main nutrient absorption. ⸻ ILEUM Final nutrient absorption. ⸻ VILLI Finger-like projections. Function: Increase surface area. ⸻ LIVER Functions: * Produces bile * Processes nutrients * Detoxifies blood ⸻ GALL BLADDER Functions: * Stores bile * Releases bile into small intestine ⸻ PANCREAS Functions: * Produces digestive enzymes * Produces bicarbonate ⸻ BILE Function: Emulsifies fats. Breaks large fat droplets into smaller droplets. Makes fat digestion easier. ⸻ DIGESTION OF CARBOHYDRATES Mouth: * Amylase begins digestion Small Intestine: * Pancreatic amylase continues digestion End Product: Glucose ⸻ DIGESTION OF PROTEINS Stomach: * Pepsin begins digestion Small Intestine: * Trypsin continues digestion End Product: Amino Acids ⸻ DIGESTION OF LIPIDS Small Intestine: * Bile emulsifies fats * Lipase digests fats End Product: Fatty Acids + Glycerol ⸻ EVOLUTION Evolution: Change in populations over time. Individuals do NOT evolve. Populations evolve. ⸻ DARWIN Proposed: Natural Selection Book: On the Origin of Species ⸻ WALLACE Independently developed theory of natural selection. ⸻ LAMARCK Proposed: Inheritance of acquired characteristics Example: Giraffes stretch necks and pass longer necks to offspring. This theory is incorrect. ⸻ NATURAL SELECTION Requirements: 1. Variation 2. Overproduction 3. Competition 4. Differential Survival 5. Reproduction Result: Adaptation ⸻ ADAPTATION Inherited characteristic that increases survival and reproduction. ⸻ SELECTIVE ADVANTAGE A characteristic that improves survival or reproduction. Example: Antibiotic resistance ⸻ SELECTIVE PRESSURE Environmental factor that influences survival. Examples: * Predators * Disease * Climate * Competition ⸻ VARIATION Differences among individuals in a population. Sources: * Mutation * Crossing Over * Random Assortment ⸻ MUTATION Ultimate source of new alleles. Creates genetic variation. ⸻ FOSSIL Preserved remains or traces of organisms. ⸻ FOSSIL RECORD Collection of fossils showing evolutionary history. Provides evidence for evolution. ⸻ RADIOACTIVE DATING Uses radioactive isotopes to determine fossil age. ⸻ UNIFORMITARIANISM Proposed by Lyell. Earth changes gradually over long periods of time. ⸻ CATASTROPHISM Proposed by Cuvier. Earth shaped by sudden catastrophic events. ⸻ BIOGEOGRAPHY Study of species distribution around Earth. Provides evidence for evolution. ⸻ EMBRYOLOGY Study of embryos. Similar embryos suggest common ancestry. ⸻ HOMOLOGOUS STRUCTURES Same evolutionary origin. Different functions. Example: Human arm Whale flipper Bat wing Evidence of common ancestry. ⸻ ANALOGOUS STRUCTURES Different origins. Same function. Example: Bird wing Insect wing Not evidence of close ancestry. ⸻ VESTIGIAL STRUCTURES Structures with little or no function. Examples: * Human appendix * Whale pelvis Evidence of evolution. ⸻ MIMICRY One species resembles another. Example: Syrphid fly resembles wasp. Provides protection. ⸻ ARTIFICIAL SELECTION Humans select traits. Examples: * Dog breeding * Crop breeding ⸻ DIRECTIONAL SELECTION One extreme phenotype favored. Graph shifts in one direction. ⸻ STABILIZING SELECTION Average phenotype favored. Extremes selected against. ⸻ DISRUPTIVE SELECTION Both extremes favored. Middle selected against. ⸻ GENETIC DRIFT Random change in allele frequencies. Most significant in small populations. ⸻ FOUNDER EFFECT Small group starts new population. Different allele frequencies from original population. ⸻ BOTTLENECK EFFECT Population drastically reduced. Loss of genetic variation. ⸻ GENE FLOW Movement of alleles between populations. Occurs through migration. ⸻ NON-RANDOM MATING Individuals choose specific mates. Can reduce variation. ⸻ SPECIES A group of organisms that can interbreed in nature and produce fertile offspring. ⸻ SPECIATION Formation of new species. ⸻ ALLOPATRIC SPECIATION Requires: Geographic isolation Example: Mountain separates populations. ⸻ SYMPATRIC SPECIATION Occurs without geographic isolation. ⸻ PRE-ZYGOTIC ISOLATION Prevents fertilization. Examples: * Different mating seasons * Different mating songs * Different habitats ⸻ POST-ZYGOTIC ISOLATION Occurs after fertilization. Example: Sterile hybrids Example: Mule DIVERSITY Prokaryotes vs Eukaryotes PROKARYOTES * No nucleus * No membrane-bound organelles * Circular DNA * Smaller * Examples: Eubacteria, Archaebacteria EUKARYOTES * Nucleus present * Membrane-bound organelles * Linear chromosomes * Larger * Examples: Protists, Fungi, Plants, Animals Three Differences: 1. Nucleus vs no nucleus 2. Organelles vs no organelles 3. Larger vs smaller ⸻ Taxonomy Kingdom Phylum Class Order Family Genus Species Mnemonic: King Philip Came Over For Good Soup ⸻ Binomial Nomenclature Genus + Species Example: Homo sapiens Rules: * Genus capitalized * Species lowercase * Italicized Purpose: * Universal naming system * Avoids confusion * Shows relationships ⸻ Dichotomous Key Used to identify organisms using paired choices. Example: 1a Has wings → Step 2 1b No wings → Step 3 ⸻ Six Kingdoms 1. Archaebacteria 2. Eubacteria 3. Protista 4. Fungi 5. Plantae 6. Animalia ⸻ VIRUSES Virus Structure: * DNA or RNA * Capsid * Attachment proteins * Sometimes envelope Why Viruses Are Not Living: * Not made of cells * Cannot reproduce independently * No metabolism * Need host cell ⸻ DNA Virus vs RNA Virus DNA Virus: * Contains DNA * More stable RNA Virus: * Contains RNA * Mutates faster ⸻ Lytic Cycle Attachment ↓ Penetration ↓ Replication ↓ Assembly ↓ Lysis Host cell bursts. ⸻ Lysogenic Cycle Attachment ↓ Penetration ↓ Integration into host DNA ↓ Host reproduces ↓ Virus DNA copied Cell survives initially. ⸻ ARCHAEBACTERIA Characteristics: * Prokaryotic * Unicellular * Extreme environments Three Groups: Methanogens * Produce methane Halophiles * Salt-loving Thermoacidophiles * Hot acidic environments ⸻ EUBACTERIA Characteristics: * Prokaryotic * Peptidoglycan cell wall * Binary fission Examples: * E. coli * Streptococcus ⸻ Binary Fission DNA Replication ↓ Cell Growth ↓ Cell Division ↓ Two Identical Cells ⸻ Conjugation DNA transfer through pilus. Importance: * Genetic variation * Antibiotic resistance ⸻ Antibiotic Resistance Mutation ↓ Antibiotic kills susceptible bacteria ↓ Resistant bacteria survive ↓ Resistant bacteria reproduce Natural Selection ⸻ PROTISTS Characteristics: * Eukaryotic * Mostly unicellular * Aquatic Three Groups: Animal-like * Amoeba * Paramecium Plant-like * Algae * Euglena Fungus-like * Slime molds ⸻ Amoeba * Uses pseudopods * Phagocytosis ⸻ Algae * Photosynthetic * Oxygen producer ⸻ Euglena * Chloroplasts * Flagellum * Photosynthesis * Can also feed heterotrophically ⸻ Malaria Cause: Plasmodium Kingdom: Protista ⸻ FUNGI Characteristics: * Eukaryotic * Heterotrophic * Chitin cell walls * Reproduce with spores Examples: * Mushrooms * Mold * Yeast ⸻ External Digestion Release enzymes ↓ Digest food outside body ↓ Absorb nutrients ⸻ Fungi vs Plants FUNGI * Heterotrophic * Chitin * No chloroplasts PLANTS * Autotrophic * Cellulose * Chloroplasts ⸻ PLANTS Biodiversity vs Monoculture BIODIVERSITY * Many species * Stable ecosystem * Disease resistance MONOCULTURE * One crop species * Low diversity * Disease risk ⸻ Bryophytes Definition: Nonvascular plants Examples: * Mosses * Liverworts Characteristics: * No xylem * No phloem * Need water for reproduction ⸻ Vascular Plants Contain: * Xylem * Phloem ⸻ Xylem Function: Water and minerals Direction: Roots → Leaves ⸻ Phloem Function: Sugars Direction: Throughout plant ⸻ Alternation of Generations Sporophyte (2n) ↓ meiosis Spores (n) ↓ Gametophyte (n) ↓ Gametes ↓ fertilization Zygote (2n) ↓ Sporophyte ⸻ Moss Life Cycle Spores ↓ Gametophyte ↓ Egg + Sperm ↓ Zygote ↓ Sporophyte ↓ Capsule ↓ Spores Know: * Capsule * Sporophyte * Gametophyte * Spores ⸻ Fern Life Cycle Fern ↓ Sori ↓ Spores ↓ Prothallus ↓ Gametes ↓ Fertilization ↓ Young Fern Know: * Frond * Sori * Sporangia * Prothallus ⸻ Gymnosperms Characteristics: * Naked seeds * Cones * Wind pollination * Evergreen Examples: * Pine * Spruce * Fir ⸻ Angiosperms Characteristics: * Flowers * Fruit * Seeds enclosed Examples: * Apple tree * Rose * Maple ⸻ Flower Structure Anther * Produces pollen Pollen Grain * Male gamete Stigma * Receives pollen Style * Connects stigma and ovary Ovary * Contains ovules Ovule * Female gamete Petals * Attract pollinators ⸻ Plant Tissues Meristematic * Growth Dermal * Protection Ground * Photosynthesis * Storage Vascular * Transport ⸻ Leaf Structure Blade * Main leaf surface Petiole * Connects leaf to stem Cuticle * Reduces water loss Palisade Mesophyll * Photosynthesis Spongy Mesophyll * Gas exchange Veins * Xylem + Phloem ⸻ Stomata Openings in leaves. Functions: * Gas exchange * Water loss ⸻ Guard Cells Control opening and closing of stomata. ⸻ Transpiration Water loss from leaves. Functions: * Pulls water upward * Cools plant * Moves minerals ⸻ Simple vs Compound Leaves Simple: * One blade Compound: * Multiple leaflets ⸻ Monocots vs Dicots MONOCOTS * 1 cotyledon * Parallel veins * Fibrous roots * Flower parts in 3s Examples: Corn Grass DICOTS * 2 cotyledons * Net veins * Taproot * Flower parts in 4s or 5s Examples: Bean Maple ⸻ Seeds Contain: * Embryo * Stored food * Seed coat Functions: * Protection * Survival * Dispersal ⸻ Seed Dispersal Wind * Dandelion Water * Coconut Animals * Burrs Explosive * Touch-me-not ⸻ Fruit vs Vegetable Fruit: * Comes from ovary * Contains seeds Examples: Tomato Apple Pepper Vegetable: * Root, stem, leaf, or flower Examples: Carrot Celery Broccoli ⸻ Factors Affecting Plant Growth 1. Light 2. Water 3. Carbon dioxide 4. Temperature 5. Soil nutrients 6. Oxygen 7. Soil pH 8. Space 9. Pollinators 10. Disease and pests

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U.S. History Final Exam Study Guide 1. Columbus Christopher Columbus was an Italian explorer who sailed for Spain in 1492. He was searching for a westward route to Asia but instead reached the Caribbean. His voyage began long-term European exploration and colonization of the Americas. Columbus’s arrival also led to major consequences for Native Americans, including disease, conquest, forced labor, and cultural destruction. 2. Columbian Exchange The Columbian Exchange was the transfer of plants, animals, people, diseases, and ideas between Europe, Africa, and the Americas after 1492. Europeans brought horses, cattle, wheat, and diseases like smallpox. The Americas sent corn, potatoes, tomatoes, tobacco, and cacao to Europe. It changed diets, economies, populations, and environments around the world. 3. Jackson and the Bank Andrew Jackson opposed the Second Bank of the United States because he believed it gave too much power to wealthy elites. He thought the bank was unfair to common people and harmful to democracy. Jackson vetoed the bill to renew the bank’s charter and removed federal money from it. This became known as the “Bank War.” 4. Jamestown Jamestown was founded in 1607 in Virginia and was the first permanent English settlement in North America. The settlers struggled with disease, starvation, poor leadership, and conflict with Native Americans. The colony survived partly because of tobacco farming. Jamestown became important because it showed England could establish colonies in America. 5. John Smith / John Rolfe John Smith helped Jamestown survive by enforcing discipline with the rule, “He who does not work shall not eat.” He also built relationships with local Native Americans. John Rolfe introduced a successful type of tobacco, which became Jamestown’s main cash crop. Rolfe also married Pocahontas, helping create a short period of peace. 6. Middle Passage The Middle Passage was the forced journey of enslaved Africans across the Atlantic Ocean to the Americas. Conditions on ships were brutal, overcrowded, and deadly. Many Africans died from disease, starvation, abuse, or suicide. It was part of the triangular trade system and a major part of the growth of slavery in the Americas. 7. Bacon’s Rebellion Bacon’s Rebellion happened in Virginia in 1676. Nathaniel Bacon led poor farmers, indentured servants, and others against Governor Berkeley. They were angry about lack of protection from Native American attacks and unfair treatment by wealthy landowners. After the rebellion, plantation owners relied more on enslaved Africans instead of indentured servants. 8. Mayflower Compact The Mayflower Compact was signed in 1620 by the Pilgrims before they settled at Plymouth. It created a basic form of self-government. The signers agreed to make and follow laws for the good of the colony. It is important because it was an early example of democracy and majority rule in America. 9. Pilgrims & Puritans Pilgrims were Separatists who wanted to completely break away from the Church of England. They settled Plymouth in 1620. Puritans wanted to reform or “purify” the Church of England and settled mostly in Massachusetts Bay. Both groups came for religious reasons, but the Puritans created a larger and stricter society. 10. Age of Jackson Presidents The Age of Jackson refers mainly to Andrew Jackson’s presidency and the expansion of democracy for white men. Voting rights expanded as property requirements were removed for many white males. Jackson presented himself as a champion of the common man. However, this era also included Indian removal, the Bank War, and growing sectional conflict. 11. Stamp Act The Stamp Act of 1765 was a British tax on paper goods such as newspapers, legal documents, and playing cards. Colonists were angry because they had no representatives in Parliament. This led to the slogan “No taxation without representation.” Colonial protests helped force Britain to repeal the law. 12. American System The American System was an economic plan supported by Henry Clay. It included protective tariffs, a national bank, and internal improvements such as roads and canals. Its goal was to strengthen the U.S. economy and connect different regions. It showed the federal government taking a stronger role in economic growth. 13. Boston Massacre The Boston Massacre happened in 1770 when British soldiers fired into a crowd of colonists, killing five people. Colonists used the event as propaganda against Britain. Paul Revere’s engraving made the British look cruel and violent. It increased anger and tension between Britain and the colonies. 14. Boston Tea Party The Boston Tea Party happened in 1773. Colonists protested the Tea Act by dumping British tea into Boston Harbor. They were angry because Britain gave the British East India Company special advantages. Britain responded with the Intolerable Acts, which punished Massachusetts. 15. Declaration of Independence The Declaration of Independence was adopted on July 4, 1776. It announced that the colonies were separating from Britain. Thomas Jefferson wrote most of it. The document argued that people have natural rights and that government gets power from the consent of the governed. 16. Unalienable Rights Unalienable rights are rights that cannot be taken away. In the Declaration of Independence, these include “life, liberty, and the pursuit of happiness.” The idea came from Enlightenment thinkers like John Locke. These rights were used to justify independence from Britain. 17. Common Sense / Thomas Paine Common Sense was a pamphlet written by Thomas Paine in 1776. It argued that the colonies should become independent from Britain. Paine used simple language so ordinary people could understand. It helped convince many colonists to support independence. 18. Articles of Confederation The Articles of Confederation were America’s first national government. They created a weak central government because Americans feared tyranny. Congress could not tax, regulate trade well, or enforce laws effectively. Its weaknesses led to the creation of the Constitution. 19. Shays’ Rebellion Shays’ Rebellion was a farmers’ rebellion in Massachusetts in 1786–1787. Farmers were angry about debt, taxes, and losing their farms. The weak national government could not respond effectively. This showed the problems of the Articles of Confederation and encouraged leaders to write the Constitution. 20. Lexington and Concord / “Shot Heard ’Round the World” The Battles of Lexington and Concord happened in April 1775. They were the first battles of the American Revolution. British troops went to seize colonial weapons, but colonial militias resisted. The “shot heard ’round the world” refers to the first shot that began the Revolution. 21. Bunker Hill The Battle of Bunker Hill happened in 1775 near Boston. The British won, but they suffered heavy casualties. The battle proved that colonial forces could fight against the powerful British army. It gave colonists confidence early in the Revolution. 22. Saratoga / Ben Franklin The Battle of Saratoga in 1777 was a major American victory. It is considered the turning point of the Revolutionary War. After Saratoga, France agreed to support the Americans. Benjamin Franklin helped negotiate the French alliance, which provided money, troops, and naval support. 23. Yorktown The Battle of Yorktown happened in 1781. American and French forces trapped British General Cornwallis in Virginia. The French navy blocked British escape by sea. Cornwallis surrendered, effectively ending the Revolutionary War. 24. Alexander Hamilton / Economic Plan Alexander Hamilton was the first Secretary of the Treasury. His economic plan included paying off national debt, creating a national bank, and supporting manufacturing. He wanted a strong federal government and strong economy. His plan helped stabilize the new nation but caused political conflict. 25. Whiskey Rebellion The Whiskey Rebellion happened in 1794 when farmers protested a tax on whiskey. President George Washington sent federal troops to stop the rebellion. This showed that the new Constitution gave the federal government power to enforce laws. It was a contrast to the weakness shown during Shays’ Rebellion. 26. Washington’s Farewell Address Washington’s Farewell Address warned Americans against political parties and permanent foreign alliances. He believed political parties could divide the nation. He also wanted the U.S. to avoid being pulled into European conflicts. His advice influenced American foreign policy for many years. 27. James K. Polk James K. Polk was president from 1845 to 1849. He strongly supported Manifest Destiny and westward expansion. During his presidency, the U.S. gained Oregon territory and fought the Mexican-American War. The U.S. gained a large amount of land, including California and the Southwest. 28. William Henry Harrison William Henry Harrison was the 9th president of the United States. He was known as a military hero from the Battle of Tippecanoe. He gave a very long inaugural speech in cold weather and died about a month later. He had the shortest presidency in U.S. history. 29. Constitution The Constitution is the supreme law of the United States. It replaced the Articles of Confederation and created a stronger federal government. It established three branches: legislative, executive, and judicial. It also created checks and balances to prevent one branch from becoming too powerful. 30. Preamble to the Constitution The Preamble is the introduction to the Constitution. It begins with “We the People.” It explains the goals of the government, such as forming a more perfect union, establishing justice, ensuring peace, providing defense, promoting general welfare, and securing liberty. 31. The Republican Party The Republican Party was founded in the 1850s. It opposed the spread of slavery into western territories. Abraham Lincoln was the first Republican president. The party’s rise showed how slavery was becoming the central political issue before the Civil War. 32. Three-Fifths Compromise The Three-Fifths Compromise was made at the Constitutional Convention. It said that enslaved people would count as three-fifths of a person for representation and taxation. Southern states wanted enslaved people counted for more representation. This compromise increased Southern political power while protecting slavery. 33. Checks and Balances Checks and balances allow each branch of government to limit the power of the others. For example, the president can veto laws, Congress can override vetoes, and the Supreme Court can declare laws unconstitutional. This system prevents any one branch from becoming too powerful. 34. Intolerable Acts The Intolerable Acts were passed by Britain after the Boston Tea Party. They punished Massachusetts by closing Boston Harbor and limiting self-government. Colonists saw these acts as unfair and oppressive. They helped unite the colonies against Britain. 35. Bill of Rights The Bill of Rights is the first ten amendments to the Constitution. It protects individual freedoms such as speech, religion, press, assembly, and the right to bear arms. It was added to satisfy Anti-Federalists who feared a strong central government. 36. Impressment Impressment was the British practice of forcing American sailors into the British navy. It angered Americans and violated U.S. neutrality. Impressment was one of the major causes of the War of 1812. 37. Judicial Review / Marbury v. Madison Judicial review is the power of the Supreme Court to declare laws unconstitutional. It was established in Marbury v. Madison in 1803. Chief Justice John Marshall strengthened the power of the Supreme Court through this decision. 38. James Madison James Madison is known as the “Father of the Constitution” because he helped design the U.S. government. He also helped write the Federalist Papers and the Bill of Rights. As president, he led the country during the War of 1812. 39. War of 1812 / Battle of New Orleans The War of 1812 was fought between the United States and Britain. Causes included impressment, trade restrictions, and British support for Native American resistance. The Battle of New Orleans was fought after the peace treaty had been signed, but news had not arrived. Andrew Jackson became a national hero because of the victory. 40. Monroe Doctrine The Monroe Doctrine was announced in 1823 by President James Monroe. It warned European nations not to colonize or interfere in the Americas. In return, the U.S. would stay out of European affairs. It showed growing American confidence in foreign policy. 41. John Quincy Adams / Corrupt Bargain John Quincy Adams became president after the election of 1824. No candidate won a majority, so the House of Representatives decided the election. Henry Clay supported Adams and later became Secretary of State. Andrew Jackson’s supporters called this a “corrupt bargain.” 42. Manifest Destiny Manifest Destiny was the belief that the United States was destined to expand across North America. It encouraged westward expansion. Supporters saw expansion as progress, but it led to Native American removal, war with Mexico, and conflict over slavery. 43. Trail of Tears / Indian Removal Act The Indian Removal Act of 1830 allowed the federal government to move Native Americans west of the Mississippi River. The Trail of Tears refers especially to the forced removal of the Cherokee. Thousands died from hunger, disease, and exposure. It is one of the darkest examples of U.S. expansion. 44. Worcester v. Georgia Worcester v. Georgia was an 1832 Supreme Court case. The Court ruled that Georgia had no authority over Cherokee land. However, President Andrew Jackson did not enforce the ruling. The Cherokee were still forced to move west. 45. Missouri Compromise The Missouri Compromise was passed in 1820. Missouri entered as a slave state, and Maine entered as a free state. It also banned slavery north of the 36°30′ line in the Louisiana Territory. It temporarily balanced free and slave states but did not solve the slavery issue. 46. Alamo The Alamo was a mission in San Antonio, Texas, where Texan defenders fought Mexican forces in 1836. The defenders were defeated, but the battle became a symbol of resistance. “Remember the Alamo” became a rallying cry during the Texas Revolution. 47. Kansas-Nebraska Act The Kansas-Nebraska Act of 1854 allowed settlers in Kansas and Nebraska to decide whether to allow slavery through popular sovereignty. It repealed the Missouri Compromise line. It led to violence in Kansas, known as “Bleeding Kansas,” and increased sectional conflict. 48. Harriet Tubman Harriet Tubman escaped slavery and became a leader in the Underground Railroad. She helped many enslaved people escape to freedom. During the Civil War, she also served as a nurse, spy, and scout for the Union. She became a symbol of courage and resistance to slavery. 49. Seneca Falls Convention The Seneca Falls Convention was held in 1848 in New York. It was the first major women’s rights convention in the United States. Leaders included Elizabeth Cady Stanton and Lucretia Mott. The convention demanded women’s rights, including the right to vote. 50. John Brown John Brown was a radical abolitionist who believed slavery must be ended by force. In 1859, he led a raid on Harpers Ferry to start a slave rebellion. The raid failed, and Brown was executed. His actions increased tension between North and South before the Civil War. 51. Fugitive Slave Act The Fugitive Slave Act was part of the Compromise of 1850. It required citizens to help capture escaped enslaved people. It also punished people who helped freedom seekers. Many Northerners were angered by the law because it forced them to participate in slavery. 52. Harriet Beecher Stowe / Uncle Tom’s Cabin Harriet Beecher Stowe wrote Uncle Tom’s Cabin in 1852. The novel showed the cruelty of slavery and became very popular in the North. It helped increase abolitionist feelings. Southerners criticized it and argued that it gave a false picture of slavery. 53. Dred Scott v. Sandford Dred Scott v. Sandford was an 1857 Supreme Court case. The Court ruled that enslaved people were not citizens and could not sue in court. It also said Congress could not ban slavery in the territories. This decision angered Northerners and made sectional conflict worse. 54. Lincoln-Douglas Debates The Lincoln-Douglas debates happened in 1858 during the Illinois Senate race. Abraham Lincoln and Stephen Douglas debated slavery’s expansion. Lincoln argued slavery should not spread, while Douglas supported popular sovereignty. Although Lincoln lost the Senate race, the debates made him nationally known. 55. Popular Sovereignty Popular sovereignty means allowing people in a territory to vote on whether to allow slavery. Stephen Douglas supported this idea. It was used in the Kansas-Nebraska Act. Instead of solving the slavery issue, it led to violence and conflict. 56. Fort Sumter Fort Sumter was a federal fort in South Carolina. Confederate forces fired on it in April 1861. This attack began the Civil War. After Fort Sumter, more Southern states joined the Confederacy. 57. Emancipation Proclamation The Emancipation Proclamation was issued by Abraham Lincoln in 1863. It declared enslaved people free in Confederate-controlled areas. It did not immediately free all enslaved people, but it changed the purpose of the war. The Civil War became a fight to preserve the Union and end slavery. 58. Gettysburg Address The Gettysburg Address was a speech given by Abraham Lincoln in 1863 after the Battle of Gettysburg. Lincoln honored the soldiers who died and explained the meaning of the war. He said the nation was fighting for democracy and equality. The speech is one of the most famous in American history. 59. Reconstruction Reconstruction was the period after the Civil War when the U.S. tried to rebuild the South and reunite the nation. It also aimed to define freedom and rights for formerly enslaved people. During Reconstruction, the 13th, 14th, and 15th Amendments were passed. However, racism, Black Codes, and groups like the Ku Klux Klan limited progress. 60. Civil War Amendments The Civil War Amendments are the 13th, 14th, and 15th Amendments. The 13th Amendment abolished slavery. The 14th Amendment gave citizenship and equal protection under the law. The 15th Amendment gave Black men the right to vote. 61. Roger Williams Roger Williams was a Puritan minister who believed in religious freedom and separation of church and state. He was banished from Massachusetts for his beliefs. He founded Rhode Island, which became known for religious tolerance. His ideas influenced later American ideas about freedom of religion.

Página 1 Metabolismo Tiene como finalidad utilizar nutrientes para obtener energía. El metabolismo es innumerable y permanente. El metabolismo puede ser anabólico o catabólico. Reacciones de síntesis El anabolismo abarca todos los procesos donde se producen las sustancias que requieren las células para... Consumen energía. La fotosíntesis y la síntesis de proteínas son ejemplos de reacciones anabólicas. Reacciones de descomposición El catabolismo abarca aquellos procesos donde se degradan las sustancias con el fin de obtener energía. Liberan energía. Pueden ser procesos aerobios o anaerobios. Aerobio: necesita oxígeno. Anaerobio: no necesita. El catabolismo aerobio se activa... Página 2 Rutas metabólicas Son un conjunto de reacciones que ocurren secuencialmente. Pueden ser lineales o cíclicas. En las rutas anabólicas, las reacciones que ocurren son de reducción. En las rutas catabólicas, las reacciones que ocurren son de oxidación y se produce energía. Herramientas del metabolismo: enzimas y ATP Las enzimas son moléculas de naturaleza proteica. El organismo las utiliza para catalizar reacciones químicas. Pueden ser muy específicas. Actúan uniendo o separando las moléculas. Las sustancias que reaccionan son sustratos. Los sustratos se transforman y generan productos. Solo actúan cuando está presente una sustancia llamada: coenzima (orgánica) o cofactor (inorgánica). Las hidrolasas intervienen en las reacciones. Para comprender la acción de las enzimas: Llave cerradura: lo hace una llave (sustrato). Encaje inducido: la enzima adapta su sitio activo a la forma del sustrato. Página 3 La molécula de ATP Da energía. La energía que requieren las células para realizar todas sus funciones vitales proviene de la degradación de las moléculas orgánicas. Metabolismo en carbohidratos Los carbohidratos son la principal fuente de energía "inmediata" para el organismo. Se clasifican en: Simples: formados por una o dos moléculas de azúcar (glucosa, lactosa, fructosa). Complejos: formados por más de dos moléculas (almidones). Catabolismo en carbohidratos Los carbohidratos se convierten en glucosa. Esto se logra en tres procesos: glucólisis, respiración celular, fermentación. Glucólisis: primera ruta metabólica (citoplasma). Respiración celular: segunda ruta metabólica (mitocondria). Ciclo de Krebs: se da en condiciones aeróbicas. Transporte de electrones: se inicia durante la formación de Acetil y en el ciclo de Krebs. Anabolismo de carbohidratos Cuando la glucosa no es utilizada se almacena en el hígado en forma de glucógeno. Se realiza por una ruta llamada glucogenogénesis. Página 4 Metabolismo en plantas El metabolismo primario reúne todas aquellas actividades metabólicas que realizan las plantas y son fundamentales para la supervivencia. El ciclo de Krebs, la respiración, el metabolismo y la fotosíntesis son parte del metabolismo primario. El metabolismo secundario hace referencia a las actividades metabólicas... Los productos obtenidos son metabolitos secundarios. Síntesis en proteínas Proceso donde las células fabrican nuevas proteínas. Las proteínas cumplen con distintas funciones. Funcionan como la máquina de una fábrica. Fotosíntesis Proceso mediante el cual las plantas fabrican alimento y oxígeno. Fuentes de energía: luz, dióxido de carbono, agua y sales minerales. Página 5 Fuentes de energía: sol. Insumos: agua, CO₂, minerales, energía solar, clorofila. Maquinaria fotosintetizadora: savia bruta, savia elaborada, cloroplastos, estroma. Productos: oxígeno, glucosa. Vía intracelular: el agua y los minerales son disueltos y se desplazan por el citoplasma. Vía extracelular: el agua y los minerales pasan por las paredes y entre la membrana celular. En el mesófilo se encuentran las células que tienen abundantes cloroplastos. Cada cloroplasto está rodeado por una membrana doble. En la membrana interna se obtiene una sustancia llamada estroma. Cada saco se denomina tilacoide y cada pila grana. Página 6 Fase luminosa: membrana de los tilacoides. La clorofila capta la energía y la envía al estroma. Las enzimas usan la energía para fabricar ATP y NADPH. Las moléculas del agua se rompen (fotólisis) y se libera oxígeno. Fase oscura: estroma. El ATP y NADPH brindan la energía para el proceso. Se fija el carbono del CO₂ y se fabrica el azúcar. Ciclo de Calvin. La respiración celular Conjunto de procesos que permiten liberar energía. La energía se encuentra almacenada en los enlaces químicos. Se puede obtener energía de la glucosa en las rutas metabólicas. Para realizar respiración aeróbica o anaeróbica depende de la maquinaria enzimática. En la oxidación de la glucosa: Reacciona una molécula de glucosa a seis de oxígeno. La fermentación es una ruta metabólica que ocurre en el citoplasma en organismos como hongos, bacterias. La fermentación libera energía de la glucosa. Página 7 Tipos de fermentación Fermentación alcohólica: pan, bebidas como la cerveza. Fermentación láctica: leche

Analyse de Marivaux et L'Île des esclaves

greeting/exclamations

Which of the following was an economic policy of Louis XIV's finance minister, Jean-Baptiste Colbert? C. Establishing detailed manufacturing codes to improve the quality of French export goods Which of the following best summarizes the advice given by Frederick William in the first paragraph? D. Helping the people will strengthen the state Which of the following best summarizes the advice given by Frederick William in the second paragraph? Cultivate good relations with your neighbors in case of disputes. Which of the following best summarizes the advice given by Frederick William in the third paragraph? C. Alliances are useful but a state should rely on its own strength The system of intendants was established in seventeenth-century France primarily to B. implement royal policies locally The event shown in the engraving is associated with the development of which of the following forms of government in Europe in the seventeenth century? A. Absolutism The depiction of the scene in the engraving best illustrates which of the following aspects of the French aristocracy under Louis XIV's rule? A. The maintenance of the aristocracy's privileged social position Military operations such as the one shown in the engraving were most strongly supported by which of the following features of Louis XIV's government? B. The creation of a strong centralized system of taxation and state finance Which of the following represents the final defeat of efforts by the Ottoman Empire to acquire large areas of central Europe? d. The siege of Vienna (1683) The Russian woodcut above (about 1698) symbolizes Peter the Great's c. imposition of Western values on the Russian nobility The establishment and growth of St. Petersburg during the early eighteenth century was part of Peter the Great's attempt to do which of the following? C. Remake Russian institutions to be as effective as those in Western Europe Which of the following best describes the claim communicated by the artist about the Peace of Westphalia? D. The treaty would lead to a new period of peace and prosperity. The artist's statement that the kings of France, Spain, and the Holy Roman Empire "stand united" most clearly suggests that A. he hoped the Peace of Westphalia would bring the rival Catholic powers back together The presence of Bellona and the statement that "the people are obedient under you, o great Philip" best support the argument that the artist B. wished to portray the Catholic Habsburgs as the victors "Kings are justly called gods for that they exercise a manner or resemblance of Divine power upon Earth." Which of the following was most likely to agree with this statement? B. James I of England The "malicious words" attributed to the accused best illustrate which of the following developments in England in the late seventeenth century? C. The ongoing tensions between Parliament and the Crown over the limits of royal authority. Michael Ferrer's defense best illustrates which of the following? B. The Protestant victory in the Glorious Revolution The outcome of the trial best illustrates which of the following (Michael Ferrer)? A. The protection of the rights of the gentry and aristocracy from monarchical power The cartoon above from sev

Spanish 3 Honors - Spanish Vocabulary of Nuestra America, Autobiografia de un esclavo, y La fiesta del arbol

englais 2

englais

Modern Civilizations — Semester 2 Exam Study Guide Exam Date: May 22 Format: Bubble Sheet Questions: 123 total • 50 Vocabulary/Matching • 50 Multiple Choice • 16 Map Skills • 7 Document-Based Questions ⸻ SECTION A — GEOGRAPHY SKILLS Key Vocabulary Cardinal Directions • North • South • East • West Shown on a compass rose. Intermediate Directions • Northeast • Northwest • Southeast • Southwest Latitude Imaginary lines that run east-west and measure distance north or south of the Equator. Longitude Imaginary lines that run north-south and measure distance east or west of the Prime Meridian. Projection A flat map representation of Earth. Scale Shows distance on a map. Distortion When map shapes, sizes, or distances are changed because Earth is round. ⸻ 5 Themes of Geography 1. Location Where a place is. 2. Place What a place is like. 3. Movement How people, goods, and ideas move. 4. Region An area with common features. 5. Human-Environment Interaction How people affect and adapt to the environment. ⸻ Continents & Oceans 7 Continents • North America • South America • Europe • Asia • Africa • Australia • Antarctica 5 Oceans • Pacific • Atlantic • Indian • Arctic • Southern ⸻ CHAPTER 23 — SCIENTIFIC REVOLUTION & AGE OF EXPLORATION Section 1 — Scientific Revolution Key Vocabulary Geocentric Theory Earth is the center of the universe. Heliocentric Theory The sun is the center of the solar system. Elliptical Oval-shaped planetary orbits. Scientific Method Organized process of observation, testing, and experimentation. Scientific Rationalism Using reason and logic to understand the world. ⸻ Important People Galileo Galilei Used a telescope to support heliocentric theory. Isaac Newton Developed laws of motion and gravity. Nicolaus Copernicus Proposed heliocentric theory. René Descartes Believed truth comes through reason. Robert Hooke Studied cells using microscopes. Sir Francis Bacon Promoted experimentation and observation. ⸻ Comprehension & Concepts Educational ideas Muslim scholars adopted from India • Mathematics • Astronomy • Number system (including zero) How were cells discovered? Scientists used microscopes to observe tiny living structures. Who led the study of cells? Robert Hooke ⸻ Section 2 — The Age of Exploration Key Vocabulary Caravel Fast, maneuverable sailing ship used by explorers. Colony Land controlled by another country. Exploit To use resources for benefit or profit. Quinine Medicine used against malaria. Rivalry Competition between nations. Smallpox Deadly disease spread to Native Americans. ⸻ Important People & Places Christopher Columbus Sailed for Spain and reached the Americas in 1492. Columbian Exchange Transfer of plants, animals, diseases, and ideas between Europe and the Americas. Dutch East India Company Controlled trade in Asia. Ferdinand II of Aragon and Isabella I of Castile Sponsored Columbus’s voyage. Prince Henry the Navigator Encouraged Portuguese exploration. ⸻ Comprehension & Concepts Who was Prince Henry the Navigator? A Portuguese prince who funded exploration schools, maps, and voyages. Why was the Caravel important? • Faster ship • Easier to steer • Could sail against the wind • Allowed longer ocean voyages ⸻ Section 3 — European Empires Key Vocabulary Conquistador Spanish conqueror in the Americas. Plantation Large farm using forced labor. Racism Belief that one race is superior. Triangular Trade Trade route connecting Europe, Africa, and the Americas. Middle Passage Brutal voyage transporting enslaved Africans to the Americas. ⸻ Important People & Places Atahualpa Last Inca emperor defeated by Spain. Francisco Pizarro Conquered the Inca Empire. Hernán Cortés Conquered the Aztec Empire. Pedro Álvares Cabral Claimed Brazil for Portugal. Tenochtitlan Capital of the Aztec Empire. ⸻ Comprehension & Concepts Describe the invasion of Mexico • Hernán Cortés led Spanish conquistadors. • The Aztecs were led by Montezuma. • Spanish had guns, horses, steel weapons, and Native allies. • Smallpox weakened the Aztecs. Conditions of the Middle Passage • Crowded ships • Disease • Starvation • Abuse and death Achievements of Portugal • Explored African coast • Opened sea routes to Asia • Built trading empire ⸻ CHAPTER 24 — ENLIGHTENMENT & REVOLUTIONS Section 1 — The Age of Reason Key Vocabulary Absolute Monarch King or queen with total power. Divine Right Belief that rulers receive power from God. Natural Rights Basic rights all people are born with. Enlightened Despot Ruler who accepted Enlightenment ideas. Laissez-faire Government should not interfere in economy. Free Enterprise Businesses operate with little government control. Philosophe French Enlightenment thinker. ⸻ Important People John Locke Believed people have natural rights. Montesquieu Supported separation of powers. Voltaire Supported freedom of speech and religion. Jean-Jacques Rousseau Believed government should follow the will of the people. Mary Wollstonecraft Supported women’s rights and education. Adam Smith Wrote about free-market economics. Louis XIV Example of an absolute monarch. Catherine the Great Enlightened despot of Russia. Frederick the Great Enlightened ruler. Joseph II Made reforms based on Enlightenment ideas. ⸻ Comprehension & Concepts What group applied science ideas to government? The philosophes. Why did philosophes think justice systems were unfair? Punishments were cruel and laws treated social classes unequally. ⸻ Section 2 — Revolutions on Three Continents Key Vocabulary Bourgeoisie Middle class. Jacobins Radical French Revolution group. Declaration of Independence American colonies’ statement of freedom from Britain. Declaration of the Rights of Man and of the Citizen French document declaring equality and rights. ⸻ Important People Thomas Jefferson Main writer of the Declaration of Independence. Louis XVI French king executed during the Revolution. Napoleon Bonaparte Rose to power after the French Revolution. Simón Bolívar Helped liberate Venezuela and other nations. José de San Martín Helped free South American countries from Spain. Toussaint Louverture Led Haitian independence movement. ⸻ Comprehension & Concepts Who fought for Venezuela’s independence? Simón Bolívar Why were the Articles of Confederation replaced? The national government was too weak. ⸻ CHAPTER 25 — INDUSTRIALIZATION, NATIONALISM & IMPERIALISM Section 1 — Industrial Revolution Key Vocabulary Industrialize Develop factories and machines. Urbanization Growth of cities. Labor Union Workers organized for better conditions. Push-Pull Factor Reasons people leave or move to places. Socialism Government control of economy to help society. Communism Classless society where property is shared. Woman Suffrage Women’s right to vote. ⸻ Important People Eli Whitney Invented the cotton gin. Karl Marx Created communist ideas. Ellis Island Main immigration station in the U.S. ⸻ Comprehension & Concepts Three ways Industrial Revolution changed society • More factories • Urbanization • Faster transportation • More goods produced • Growth of middle class Push factors affecting immigration • Poverty • Famine • War • Lack of jobs ⸻ Section 2 — Nationalism Around the World Key Vocabulary Nationalism Strong pride and loyalty to one’s nation. Nation-State Country with one national identity. Militarism Building up armed forces. Republic Government where citizens elect leaders. Dictator Leader with total control. ⸻ Important People Otto von Bismarck Unified Germany under Prussian leadership. Giuseppe Garibaldi Helped unify Italy. Meiji Emperor Led modernization of Japan. ⸻ Comprehension & Concepts Problems after Latin American independence • Political instability • Weak economies • Dictatorships • Social inequality Who unified Germany? Otto von Bismarck How did the Meiji Restoration transform Japan? • Modern industry • Modern military • Western education and technology ⸻ Section 3 — The New Imperialism Key Vocabulary Imperialism Strong nations taking control of weaker regions. Direct Rule Foreign country controls government directly. Missionary Person spreading religion. Sepoy Indian soldier serving Britain. Raj British rule in India. ⸻ Important Places & Events Berlin Conference European nations divided Africa. East India Company Controlled trade and territory in India. French Indochina French-controlled region in Asia. ⸻ CHAPTER 26 — WORLD AT WAR Section 1 — World at War Key Vocabulary Alliance Agreement between countries for support. Stalemate No side can win. Trench Warfare Fighting from dug trenches. U-boat German submarine. Bolsheviks Russian revolutionary communist group. Treaty of Versailles Treaty ending WWI. Triple Alliance Germany, Austria-Hungary, Italy. Triple Entente Britain, France, Russia. League of Nations International peace organization after WWI. ⸻ Important People Vladimir Lenin Leader of Bolsheviks. Karl Marx Inspired communist beliefs. ⸻ Comprehension & Concepts What triggered WWI? Assassination of Archduke Franz Ferdinand. Immediate effect of WWI on Russia Economic hardship and revolution. Why was WWI a total war? Entire economies and civilians supported the war effort. How did Bolsheviks change Russia’s war policy? Russia withdrew from WWI. Trench warfare resulted from what technology? Machine guns and modern artillery. ⸻ Section 2 — Between the Wars Key Vocabulary Fascism Dictatorship emphasizing nationalism and obedience. Propaganda Biased information used to influence people. Reparations Payments for war damages. Totalitarian Government with total control. Inflation Rising prices and weaker money value. ⸻ Important People Adolf Hitler Leader of Nazi Germany. Benito Mussolini Leader of Fascist Italy. Franklin D. Roosevelt Led U.S. during Great Depression and WWII. Joseph Stalin Communist dictator of USSR. ⸻ Comprehension & Concepts Conditions caused by Great Depression • Unemployment • Poverty • Bank failures • Economic collapse What kind of dictatorships did Hitler and Mussolini create? Fascist dictatorships. ⸻ Section 3 — World War II Key Vocabulary Appeasement Giving in to avoid conflict. Blitzkrieg “Lightning war” using fast attacks. Genocide Deliberate killing of a people group. Holocaust Murder of six million Jews during WWII. Ration Limit supplies during wartime. Atomic Bomb Extremely powerful nuclear weapon. ⸻ Important Places & People Pearl Harbor Japanese attack brought U.S. into WWII. Hiroshima First atomic bomb dropped. Nagasaki Second atomic bomb dropped. Winston Churchill Led Britain during WWII. ⸻ Comprehension & Concepts Which event broke German defenses in the west? D-Day invasion (Normandy invasion)

ECLAT

7CM- Le commerce des esclaves vers l’Amérique

ENCAPS 2026 - I

Membrane-Enclosed Organelles and Protein Transport

Unit 2: Freedom, Enslavement, and Resistance Practice Flashcards