Loss of Spontaneous Respiration and Airway

Spontaneous words

VOC: Spontané et sociable?

Ancient Greek Civilization: The Hellenic Period and the Spartan Polis

PSYCHOLOGY TEST #1 — COMPLETE STUDY NOTES Test Format (40 Marks) Part A: Fill in the Blank — 10 marks (Knowledge) Part B: Identification — 10 marks (Inquiry) Part C: Short Answer — 10 marks (Communication) Part D: Theory Application — 10 marks (Application) 1. THE PHYSICAL HUMAN BRAIN Frontal Lobe Functions: Controls higher thinking skills, decision-making, problem-solving, planning, attention, intelligence, personality, emotions and voluntary movements. Associated disorders: ADHD, schizophrenia and bipolar disorder. Damage can cause: Paralysis, mood changes, personality changes, difficulty speaking, loss of spontaneity and unusual social behaviour. Remember: Frontal = Thinking and personality. Parietal Lobe Functions: Processes sensory information, especially touch. Helps with spatial awareness, balance, recognizing objects and understanding surroundings. Associated disorders: Alzheimer's disease, ADHD and schizophrenia. Damage can cause: Sensory difficulties, disorientation, poor coordination and difficulty recognizing or locating objects and body parts. Remember: Parietal = Touch and surroundings. Occipital Lobe Functions: Processes visual information, including colours, shapes, movement and objects. Responsible for vision. Associated disorders: Schizophrenia, bipolar disorder, autism and depression. Damage can cause: Blindness, visual hallucinations and difficulty seeing colours or movement. Remember: Occipital = Vision and seeing. Temporal Lobe Functions: Responsible for hearing, recognizing faces and objects, understanding language, learning, memory and emotions. Associated disorders: Schizophrenia, Alzheimer's disease and autism. Damage can cause: Memory loss, speech difficulties, difficulty understanding language, difficulty recognizing faces and objects, and changes in behaviour. Remember: Temporal = Hearing and memory. Cerebellum Functions: Controls balance, posture, coordination, voluntary movements, reflexes, motor skills and timing. Associated disorders: Autism, schizophrenia and dyslexia. Damage can cause: Poor coordination, tremors, dizziness, difficulty walking and slurred speech. Remember: Cerebellum = Balance and coordination. Brain Stem Functions: Controls automatic body functions such as breathing, heart rate, blood pressure and digestion. Also helps regulate sleep, alertness and balance. Associated disorders: Autism and sleep disorders such as insomnia. Damage can cause: Organ problems, sleep difficulties, balance problems and serious problems with automatic body functions. Remember: Brain Stem = Keeps you alive. Quick Memorization: Frontal = Thinking. Parietal = Touch. Occipital = Vision. Temporal = Hearing and memory. Cerebellum = Balance. Brain Stem = Automatic functions. 2. SIGMUND FREUD Who was Sigmund Freud? Austrian neurologist and psychologist. Founder of psychoanalysis. Believed the unconscious mind strongly influences human behaviour. Believed childhood experiences help shape personality. Freud's 7 Main Theories 1. Psychoanalysis A method of studying and understanding the unconscious mind. Freud believed hidden thoughts, feelings and childhood experiences influence behaviour. Used therapy to help people understand their unconscious thoughts. Example: Someone may have a fear without understanding where it originally came from. 2. Three-Part Psyche Freud believed personality was made up of three parts: the Id, Ego and Superego. Id Represents biological wants and desires. Follows the pleasure principle. Wants immediate satisfaction without thinking about consequences. Example: Eating all the cookies because you want them. Remember: Id = Wants. Ego Balances the Id and Superego. Follows the reality principle. Makes realistic decisions and considers consequences. Example: Deciding to eat one cookie instead of all of them. Remember: Ego = Reality. Superego Represents your conscience. Tells you what is right and wrong. Develops through experiences, rules and values. Example: Knowing you shouldn't take someone else's cookies. Remember: Superego = Morals. 3. Oedipus Complex Freud believed young children experience unconscious feelings of attachment toward the parent of the opposite sex and rivalry toward the same-sex parent. Named after the Greek character Oedipus, who unknowingly killed his father and married his mother. Remember: Opposite-sex parent = Attachment; same-sex parent = Rivalry. 4. Sexual Desires (Libido) Freud believed sexual energy, called libido, influences human personality and behaviour. He believed frustration of desires could affect mental health. The term Freudian slip comes from his ideas about unconscious thoughts accidentally appearing in speech. Example: Accidentally saying what you were actually thinking instead of what you meant to say. 5. Examination of Dreams Freud believed dreams were a window into the unconscious mind. He thought dreams revealed hidden thoughts, feelings and desires. Example: A dream might represent a hidden fear or worry. 6. Stages of Development Freud believed personality develops through five stages. Each stage focuses on a different area of pleasure. Oral Stage (0–18 months): Pleasure comes from the mouth, such as sucking and feeding. Anal Stage (18 months–3 years): Focuses on toilet training and control. Phallic Stage (3–6 years): Focuses on the body and awareness of gender differences. Latency Stage (6–puberty): Sexual urges are less noticeable. Children focus more on friendships, school and learning. Genital Stage (puberty–adulthood): Focuses on mature relationships and sexual interests. Remember the order: Oral → Anal → Phallic → Latency → Genital. 7. Defence Mechanisms Freud believed the mind uses defence mechanisms to protect itself from uncomfortable thoughts and feelings. They happen unconsciously. Important examples: Denial: Refusing to accept reality. Example: Saying you didn't fail a test when you did. Repression: Pushing upsetting memories out of awareness. Projection: Blaming others for your own feelings. Example: Calling someone jealous when you are jealous. Displacement: Taking your feelings out on someone else. Example: Being upset at school and snapping at a family member. Rationalization: Making excuses for behaviour. Example: Saying a test was unfair because you didn't study. How Freud Applies to Psychology Helps explain how the unconscious mind influences behaviour. Helps explain how childhood experiences affect personality. Studies how dreams and hidden feelings may affect people. Explains how defence mechanisms protect people from uncomfortable emotions. Influenced the development of psychotherapy and talk therapy. 3. CONDITIONING Conditioning is a type of learning where behaviour changes through experiences and associations. There are two main types: Classical and Operant Conditioning. A. Classical Conditioning Learning through association. Happens when someone connects two stimuli. A person learns to associate something with a natural response. The response eventually becomes automatic. Example: Pavlov's Dogs Pavlov rang a bell before giving dogs food. Food naturally caused the dogs to salivate. Eventually, the dogs started salivating just from hearing the bell. Four Important Terms: US (Unconditioned Stimulus): Something that naturally causes a reaction. UR (Unconditioned Response): The natural reaction to the stimulus. CS (Conditioned Stimulus): Something originally neutral that becomes associated with the unconditioned stimulus. CR (Conditioned Response): The learned reaction to the conditioned stimulus. Example from your notes: Toilet and Shower Every time someone flushes a toilet, the shower becomes very hot. Eventually, the person jumps back just from hearing the toilet flush. US: Hot water. UR: Jumping back. CS: Toilet flushing. CR: Jumping back when hearing the toilet flush. Remember: Classical = Association. B. Operant Conditioning Learning through rewards and punishments. Behaviour changes depending on its consequences. People learn which behaviours lead to positive or negative outcomes. Usually involves voluntary behaviours. Four Types of Operant Conditioning: 1. Positive Reinforcement Adding something pleasant to increase a behaviour. Example: Getting a reward for good grades. 2. Negative Reinforcement Removing something unpleasant to increase a behaviour. Example: Homework stops once you finish your chores. 3. Positive Punishment Adding something unpleasant to decrease a behaviour. Example: Getting extra chores for breaking a rule. 4. Negative Punishment Removing something pleasant to decrease a behaviour. Example: Losing phone privileges for breaking a rule. Important to Remember: Positive = Adding something. Negative = Removing something. Reinforcement = Increases behaviour. Punishment = Decreases behaviour. Positive does NOT mean good, and negative does NOT mean bad. Classical vs. Operant Conditioning Classical = Learning through association. Operant = Learning through consequences. Classical = Usually automatic responses. Operant = Usually voluntary behaviours. Classical example = Pavlov's dogs. Operant example = Getting rewarded for good grades. 4. COGNITIVE BIAS What is Cognitive Bias? The way we personally see and interpret the world. Everyone processes information differently. Our perceptions can influence our behaviour and decisions. Many biases happen unconsciously, without us realizing. Example: Two people experience the same situation but remember and interpret it differently. Confirmation Bias The tendency to look for and remember information that supports what you already believe. People often ignore information that goes against their beliefs. Example: You believe someone is rude, so you only notice when they act rude and ignore when they are nice. Tests That Measure Cognitive Bias 1. Rorschach Inkblot Test People look at inkblots and explain what they see. Their interpretations are recorded and analyzed. Remember: Inkblots = What do you see? 2. Thematic Apperception Test (TAT) People look at a series of pictures and create stories about them. The stories are analyzed to understand their thoughts and feelings. Remember: Pictures = Tell a story. 3. Word Association Test People are given words and respond with the first word that comes to mind. Responses can be analyzed to explore subconscious thoughts. Remember: Words = First thing that comes to mind. 4. Graphology The study of handwriting and how it may relate to personality traits. Remember: Graphology = Handwriting. 5. ETHICS IN PSYCHOLOGICAL STUDIES Ethics are rules that protect people who participate in psychological research. Five Ethical Principles 1. Minimizing Harm - Participants should not experience unnecessary physical or emotional harm. 2. Informed Consent - Participants must understand the study and agree to participate. 3. Confidentiality and Anonymity - Personal information and identities must be protected. 4. Avoiding Deception - Researchers should not mislead participants unnecessarily. 5. Right to Withdraw - Participants can leave the study at any time without being forced to stay. Remember: Harm, Consent, Privacy, Honesty, Withdraw. Controversial Experiments 1. Milgram Obedience Study (1963) Researcher: Stanley Milgram. Purpose: To investigate how far people would obey authority, even when it went against their conscience. What happened? Participants were told they were taking part in a learning experiment. They were assigned the role of the teacher. They were instructed to give increasing electric shocks to a learner for incorrect answers. The learner was actually an actor, and the shocks were fake. Many participants continued because an authority figure told them to. Main takeaway: - People may obey authority even when they believe their actions are wrong. Ethical issues: - Deception and psychological stress. 2. Stanford Prison Experiment (1971) Researcher: Philip Zimbardo. Purpose: To investigate how people behave when placed in positions of power or powerless situations. What happened? Participants were randomly assigned to be prisoners or guards. The experiment was designed to imitate a prison. Some guards began treating prisoners unfairly. The experiment became harmful and was stopped early. Main takeaway: - Situations and social roles can influence human behaviour. Ethical issues: - Psychological harm, lack of protection and insufficient oversight. Difference Between the Two Experiments Milgram = Obedience to authority. Stanford = Power and social roles. Milgram = Stanley Milgram, 1963. Stanford = Philip Zimbardo, 1971. 6. ALFRED ADLER AND CARL JUNG Both were psychologists who studied personality. They were originally influenced by Freud but disagreed with some of his ideas. A. Alfred Adler Who Was Alfred Adler? Austrian psychologist born in 1870. Founder of Individual Psychology. Believed people are motivated by the desire to improve themselves and overcome feelings of inferiority. 1. Inferiority Complex Adler believed people naturally experience feelings of inferiority or not being good enough. People try to overcome these feelings through self-improvement and achievement. Example: Someone who struggles in school works harder to improve their grades. 2. Compensation Trying to overcome a weakness by improving another area of life. Example: Someone who struggles with sports focuses on becoming better at music. 3. Napoleon Complex Describes someone who overcompensates because they feel inferior due to a perceived disadvantage. Often associated with people who are shorter in height. Example: Someone acts overly aggressive to prove themselves. 4. Fictional Finalism (Fictional Story) Adler believed people create an idea or goal about who they want to become at a young age. This imagined goal influences their decisions and behaviour throughout life. Example: A child believes they will become a doctor and makes decisions based on that goal. 5. Birth Order Adler believed birth order could influence personality and behaviour. Being the oldest, middle or youngest child may affect how someone develops. 6. Three Major Life Tasks Occupational Tasks: Career, education and work. Societal Tasks: Friendships and social connections. Love Tasks: Relationships, marriage and family. Remember: Work, Friends, Love. B. Carl Jung Who Was Carl Jung? Swiss psychologist born in 1875. Originally influenced by Freud. Agreed that the unconscious mind influences behaviour. Disagreed with Freud's strong focus on sexuality. Often included spirituality and the soul in his psychological theories. 1. Collective Unconscious Jung believed all humans share a deeper unconscious mind. It contains universal symbols and patterns passed down through generations. These universal patterns are called archetypes. Example: Different cultures have similar ideas about heroes, mothers and villains. 2. Introvert vs. Extrovert - Jung developed a personality theory based on where people direct their mental energy. Introverts: Focus their energy inward toward themselves. Prefer reflecting on their own thoughts and feelings. Draw energy from their inner world. Extroverts: Focus their energy outward toward people and their surroundings. Direct their attention toward the outside world. Important: Introvert does not automatically mean shy, and extrovert does not simply mean outgoing. 3. Psychological Balance Jung believed people need balance between opposite personality traits. Understanding different sides of your personality helps with personal development and mental health. Difference Between Freud, Adler and Jung Freud = Unconscious mind, childhood experiences and sexual energy. Adler = Inferiority, compensation and self-improvement. Jung = Collective unconscious, archetypes and introversion/extroversion. MOST IMPORTANT THINGS TO MEMORIZE If you are short on time, make sure you know these: Brain Parts Frontal = Thinking. Parietal = Touch. Occipital = Vision. Temporal = Hearing and memory. Cerebellum = Balance. Brain Stem = Automatic functions. Freud Id = Wants. Ego = Reality. Superego = Morals. Oral → Anal → Phallic → Latency → Genital. Defence mechanisms = Protect the mind from uncomfortable thoughts and feelings. Conditioning Classical = Association. Operant = Consequences. Positive = Add. Negative = Remove. Reinforcement = Increase behaviour. Punishment = Decrease behaviour. Cognitive Bias Confirmation bias = Looking for information that supports your beliefs. Rorschach = Inkblots. TAT = Pictures and stories. Word Association = Words. Graphology = Handwriting. Ethics Minimizing harm. Informed consent. Confidentiality and anonymity. Avoiding deception. Right to withdraw. Experiments Milgram = Obedience to authority. Stanford = Power and social roles. Adler Inferiority complex = Feeling inferior. Compensation = Overcoming weaknesses. Fictional finalism = Goals that guide behaviour. Three tasks = Occupational, societal and love. Jung Collective unconscious = Shared unconscious patterns. Archetypes = Universal symbols and characters. Introvert = Focuses inward. Extrovert = Focuses outward.

UW Spokane Interview

Week 3: Thermodynamics and Reaction Spontaneity: Enthalpy, Entropy, and Gibbs Free Energy in Biological Systems

Sporten en sportlocaties

Consider the following two reactions: C6H12O6 + C6H12O6 -> C12H22O11 + H2O (ΔG = +6.5 kcal/mol) ATP -> ADP + Pi (ΔG = -7.3 kcal/mol) If these two reactions are coupled together can the reaction proceed spontaneously?

ACER 10/21 Lecture #16: Phase Changes and Spontaneity

### **1. Pigments, Photosystems, and Leaf Color** * **Light Perception:** Sunlight consists of colors in the visible spectrum (**ROY G BIV**). We only see **reflected light**, not absorbed light. * **Pigments:** * **Chlorophyll A:** Main photosynthetic pigment; absorbs violet, blue, and red light while **reflecting green light**. * **Chlorophyll B:** Accessory pigment; absorbs blue, orange, and red light while **reflecting green light**. * **Carotenoids:** Accessory pigments; absorb blue and green light while **reflecting yellow, orange, and red light**. * **Autumn Leaf Color Changes:** In spring, carotenoids are masked by abundant chlorophyll. In autumn, shorter days reduce sunlight, causing chlorophyll to break down and reveal carotenoids; thus, orange/yellow/red light is **reflected**. * **Photosystem Structure:** Photosystems are located on the **thylakoid membrane** and consist of proteins, chlorophyll A, chlorophyll B, and carotenoids. * **Antenna Complex:** Contains chlorophyll B, carotenoids, and proteins. It captures photons and passes solar energy around, but **does not donate electrons**. * **Reaction Center:** Contains a pair of **Chlorophyll A** molecules. It absorbs solar energy to excite low-energy electrons and **donates high-energy electrons** to the primary electron acceptor. * **Redox in Photosystems:** When the reaction center donates high-energy electrons, it becomes **oxidized**; the electron acceptor gains them and becomes **reduced**. The lost electrons are replenished by an **electron donor** that donates low-energy electrons and becomes oxidized. --- ### **2. Light-Dependent Reactions & Electron Transport Chain** * **Location:** Occurs on the **thylakoid membrane**. * **Photosystem II (PS II) vs. Photosystem I (PS I):** * **PS II:** Absorbs sunlight at **\\(680\text{ nm}\\)**. Its electron donor is **water (\\(\text{H}_2\text{O}\\))**, which is split/oxidized into \\(2\text{ e}^-\\), \\(2\text{ H}^+\\), and oxygen gas (\\(\text{O}_2\\)) inside the thylakoid space. PS II uses electron energy to drive **ATP synthesis**. * **PS I:** Absorbs sunlight at **\\(700\text{ nm}\\)**. Replaces its lost electrons directly from **Plastocyanin (PC)**. PS I uses re-excited electrons to make **NADPH**. * **Sequential Electron Order:** \\(\text{H}_2\text{O} \rightarrow \text{PS II (680 nm)} \rightarrow \text{Plastoquinone (PQ)} \rightarrow \text{B}_6\text{f complex} \rightarrow \text{Plastocyanin (PC)} \rightarrow \text{PS I (700 nm)} \rightarrow \text{Ferredoxin (FD)} \rightarrow \text{NADP}^+\text{ reductase} \rightarrow \text{NADP}^+ \rightarrow \text{NADPH}\\). * **Mobile Electron Carriers:** Light reactions use **3 mobile carriers**: * **Plastoquinone (PQ):** Accepts electrons from PS II and delivers them to the \\(\text{B}_6\text{f}\\) complex. * **Plastocyanin (PC):** Carries electrons with the **lowest energy**. * **Ferredoxin (FD):** Carries electrons with the **highest energy** because its electrons were re-excited by \\(700\text{ nm}\\) light at PS I. * **Proton Pump & Chemiosmosis:** * The **\\(\text{B}_6\text{f}\\) complex** is the single proton pump in photosynthesis. It uses electron energy to actively pump \\(\text{H}^+\\) ions from the stroma into the thylakoid space, making the thylakoid space **more acidic (lower pH, higher \\(\text{H}^+\\) concentration)**. * \\(\text{H}^+\\) ions rush back into the stroma through **ATP synthase** down their concentration gradient via **facilitated diffusion (passive transport)**, synthesizing ATP (chemiosmosis). * **Products & Energetics:** Produces **\\(\text{O}_2\\)** (in thylakoid space), **ATP**, and **NADPH** (both in stroma). Because ATP is produced, light-dependent reactions are **exergonic**. * **Final Electron Acceptor:** **\\(\text{NADP}^+\\)**, which is reduced to NADPH by the enzyme \\(\text{NADP}^+\\) reductase. --- ### **3. Photosynthetic ETC vs. Mitochondrial ETC** * **Mobile Carriers:** Photosynthesis uses **3** (PQ, PC, FD); mitochondria use **2** (Ubiquinone, Cytochrome C). * **Proton Pumps:** Photosynthesis uses **1** (\\(\text{B}_6\text{f}\\) complex); mitochondria use **3** (\\(\text{NADH}\\) dehydrogenase, \\(\text{BC}_1\\) complex, cytochrome oxidase complex). *(Do not confuse \\(\text{B}_6\text{f}\\) in thylakoids with \\(\text{BC}_1\\) in mitochondria!)*. --- ### **4. Light-Independent Reactions (Calvin Cycle / \\(C_3\\) Pathway)** * **Location & Energetics:** Takes place in the **stroma** of chloroplasts (or cytoplasm of cyanobacteria). It is an **endergonic** process (\\(\Delta G > 0\\), non-spontaneous) that consumes ATP and NADPH. * **Three Phases:** 1. **Carbon Fixation:** \\(\text{CO}_2\\) (\\(1\text{C}\\)) combines with **RuBP** (\\(5\text{C}\\) sugar), catalyzed by the enzyme **Rubisco**, to form two \\(3\text{C}\\) molecules of **3-phosphoglycerate (3-PG / PGA)**. *(Inorganic carbon becomes fixed into organic compounds)*. 2. **Reduction:** Uses \\(12\text{ ATP}\\) and \\(12\text{ NADPH}\\) to reduce \\(12\text{ PGA}\\) into \\(12\text{ G3P}\\) (glyceraldehyde 3-phosphate). **G3P is the direct product** of the Calvin cycle. Two G3P molecules leave the cycle to form **1 glucose molecule** (indirect product). 3. **Regeneration of RuBP:** Consumes \\(6\text{ ATP}\\) to regenerate RuBP from the remaining 10 G3P molecules so the cycle can continue. * **Energy Requirements per Glucose:** Requires **6 turns** of the cycle, consuming **\\(18\text{ ATP}\\)** (\\(12\\) in reduction, \\(6\\) in regeneration) and **\\(12\text{ NADPH}\\)** (used only in reduction). --- ### **5. Photorespiration & Plant Adaptations (\\(C_3\\), \\(C_4\\), and \\(CAM\\))** * **Photorespiration:** Under hot, dry conditions, plants close their **stomata** to prevent water loss, causing internal \\(\text{CO}_2\\) to drop and \\(\text{O}_2\\) to build up. **Rubisco** binds \\(\text{O}_2\\) instead of \\(\text{CO}_2\\) to RuBP, creating a **wasteful anabolic process** that consumes ATP and produces \\(\text{CO}_2\\) and \\(\text{H}_2\text{O}\\). * **\\(C_3\\) Plants:** Majority of plants. Have chloroplasts and Rubisco **only in mesophyll cells**. Run only the Calvin cycle and consume **\\(18\text{ ATP}\\)** per glucose. * **\\(C_4\\) Plants (e.g., corn, sugarcane):** * **Structural Difference:** Have chloroplasts in **both mesophyll cells and bundle-sheath cells**. * **Spatial Separation:** * **Mesophyll cells:** \\(\text{CO}_2 + \text{PEP} \rightarrow \text{Oxaloacetate } (4\text{C}) \rightarrow \text{Malate}\\) via **PEP carboxylase**. *(No Rubisco here)*. * **Bundle-sheath cells:** Malate is transported here and decarboxylated into \\(\text{CO}_2\\) and pyruvate. **Rubisco** uses this concentrated \\(\text{CO}_2\\) in the Calvin cycle (\\(C_3\\) pathway). * **Energy Cost:** Transporting each \\(\text{CO}_2\\) as malate costs \\(2\text{ ATP}\\) equivalents (\\(12\text{ ATP}\\) total for \\(6\text{ CO}_2\\)). Total energy per glucose = \\(18 + 12 =\\) **\\(30\text{ ATP}\\)**. * **\\(CAM\\) Plants (e.g., cacti, pineapples):** * **Temporal Separation:** Run both pathways in **mesophyll cells only** (where Rubisco is located). * **Night:** Stomata open at night to fix \\(\text{CO}_2\\) into malate (\\(C_4\\) pathway) and store it in central vacuoles. * **Day:** Stomata close; malate releases \\(\text{CO}_2\\) to drive the Calvin cycle (\\(C_3\\) pathway) during daylight. * **Energy Cost:** Consumes **\\(30\text{ ATP}\\)** per glucose. --- ### **6. Important Review Points for Exam 2** * **Final Electron Acceptors:** * Light-dependent reactions: **\\(\text{NADP}^+\\)** (reduced to \\(\text{NADPH}\\)). * Aerobic cellular respiration: **Oxygen (\\(\text{O}_2\\))** (reduced to \\(\text{H}_2\text{O}\\)). * Lactic acid fermentation: **Pyruvate** (reduced to lactate/lactic acid in skeletal muscles, causing muscle fatigue). * Ethanol/Alcohol fermentation: **Acetaldehyde** (reduced to ethanol, releasing \\(\text{CO}_2\\) in yeast). * Methanogens: **\\(\text{CO}_2\\)**. * **Glycolysis Energy & Enzymes:** * **Initial Phase:** Endergonic (uses \\(2\text{ ATP}\\)). * **Middle Phase:** Exergonic (produces \\(2\text{ ATP}\\) and \\(2\text{ NADH}\\); uses **kinase** and **dehydrogenase**). * **Final Phase:** Exergonic (produces \\(2\text{ ATP}\\)). * **Overall:** Exergonic (net yield of **\\(2\text{ ATP}\\)** per glucose). * **Krebs Cycle:** Exergonic; produces **\\(2\text{ ATP}\\)** per glucose via **substrate-level phosphorylation** (catalyzed by kinases). * **Isotope Labeling Experiment:** * Oxygen labeled in \\(\text{CO}_2\\) ends up in **glucose**. * Oxygen labeled in \\(\text{H}_2\text{O}\\) ends up in **oxygen gas (\\(\text{O}_2\\))**. * **Organism Interdependence:** Photoautotrophs can survive without heterotrophs, but heterotrophs cannot survive without photoautotrophs.

Ancient Spartan Society to the Battle of Leuctra 371 BC

Ancient Greece: Archaic Period and Spartan Society

SPARTAN SOCIETY

Chapter 5 – States of Consciousness 1. Consciousness is the awareness of internal and external events being experienced at a given moment. 2. Waking consciousness: Normal awareness of yourself and your surroundings. Altered states: Changes in awareness, such as dreaming, meditation, hypnosis, or drug effects. 3. Altered states occur through: Sleep and dreaming Meditation and hypnosis Psychoactive drugs Sensory deprivation Fatigue 4. Stages of sleep: NREM 1: Light sleep; easily awakened. NREM 2: Deeper sleep; heart rate and body temperature decrease. NREM 3: Deep sleep; body restoration. REM: Vivid dreams, active brain, temporary muscle paralysis. 5. About how long does a complete cycle of sleep take? 90 minutes 6. Sleep deprivation results in permanent negative effects. False. Many effects improve with adequate sleep, although prolonged sleep deprivation can cause serious problems. 7. Forgetting is an important human function. True. It helps prevent information overload. 8. Night terrors happen during deep sleep and are often not remembered; nightmares are frightening dreams that are usually remembered. 9. Staying up all night studying is a good idea. False. Sleep helps memory and learning. 10. Why do humans sleep? To restore the body, conserve energy, support brain function, and strengthen memories. 11. Three main theories of dreaming: Wish-fulfillment theory Information-processing theory Physiological-function theory 12. Latent content; manifest content. 13. Insomnia 14. Sleep apnea 15. Circadian rhythms 16. Meditation is a learned technique for relaxation and focused attention that brings about an altered state of consciousness. Long-term practice can improve health. 17. Drug categories: Psychoactive drugs: Drugs that affect consciousness, mood, perception, or behavior. Addictive drugs: Drugs that can lead to compulsive use. Stimulants: Drugs that increase nervous system activity. Depressants: Drugs that slow nervous system activity. Narcotics: Drugs, especially opioids, that relieve pain. Hallucinogens: Drugs that alter perception and sensory experiences. 18. Alcohol is safer than other drugs. False 19. Drug dependence is best explained by personality and willpower. False 20. Psychedelic drugs. Chapter 6 – Learning 1. Learning is a relatively permanent change in behavior brought about by experience. 2. Two types of conditioning: Classical conditioning — Ivan Pavlov: Learning by associating two stimuli. Operant conditioning — B. F. Skinner: Learning through consequences. 3. Matching: D — A once-neutral stimulus paired with an unconditioned stimulus. B — Naturally brings about a response. A — A stimulus that initially does not bring about the response. E — A response that follows a previously neutral stimulus after conditioning. C — A reflexive response that needs no training. 4. Conditioned = learned Unconditioned = unlearned or natural 5. Previously neutral stimulus becomes the conditioned stimulus. 6. Pavlov’s experiment: Pavlov rang a bell before giving dogs food. After repeated pairings, the dogs salivated at the sound of the bell alone. 7. Variables: Before conditioning Neutral stimulus: Bell → Neutral response: No salivation Unconditioned stimulus: Food → Unconditioned response: Salivation During conditioning - Neutral stimulus: Bell + Unconditioned stimulus: Food → Unconditioned response: Salivation After conditioning - Conditioned stimulus: Bell → Conditioned response: Salivation 8. Extinction 9. Spontaneous recovery 10. Generalization vs. discrimination: Generalization: Responding similarly to similar stimuli; example: salivating to similar tones. Discrimination: Responding differently to distinct stimuli; example: salivating only to the specific tone associated with food. 11. Dopamine 12. Classical or operant: Voluntary behaviors: Operant Involuntary behaviors: Classical Ivan Pavlov: Classical B. F. Skinner: Operant Dogs salivating at a bell: Classical Rats pressing a lever for food: Operant 13. In operant conditioning, learning happens when a voluntary response is reinforced or punished by its consequences. 14. An organism’s behavior and its environment. 15. True or False: True — Responses leading to satisfying consequences are more likely to be repeated. False — Environment has little influence on behavior. False — Conditioning cannot be applied to humans. False — Positive and negative mean good and bad. 16. Thorndike’s law of effect. 17. Matching: Positive: Addition of a stimulus Negative: Removal of a stimulus Reinforcement: Leads to an increase in behavior Punishment: Leads to a decrease in behavior 18. Definitions and examples: Positive reinforcement: Adding something desirable to increase behavior; getting paid for working. Negative reinforcement: Removing something unpleasant to increase behavior; buckling a seat belt to stop a warning beep. Positive punishment: Adding something unpleasant to decrease behavior; receiving extra chores for breaking a rule. Negative punishment: Removing something desirable to decrease behavior; losing video game privileges. 19. Reinforcement schedules: D — Reinforcer delivered every 5 minutes. B — Reinforcer after every 5 responses. E — Reinforcer after an unknown or changing amount of time. C — Reinforcer after an unknown or changing number of responses. A — Reinforcer every time the behavior occurs. 20. Ratio schedules depend on: Number of responses 21. Interval schedules depend on: Amount of time 22. Fixed vs. variable: Fixed schedules are predictable; variable schedules change. 23. Shaping Example: Teaching a dog to roll over by rewarding each step toward the behavior. 24. Cognitive learning theory. 25. Latent learning; a new behavior is not demonstrated until there is a reason or motivation to use what was learned. 26. Cognitive map 27. A mental map of my school, home, and familiar roads. 28. Observing; observational learning; Bobo doll experiment. 29. Mirror neurons Chapter 7 – Memory 1. Memory is the process by which we encode, store, and retrieve information. 2. Three basic memory processes: Encoding: Taking in information. Storage: Keeping information over time. Retrieval: Accessing stored information. 3. Sensory memory → Short-term memory → Long-term memory. 4. Matching: C — Holds information while actively manipulating or rehearsing it. A — Briefly holds incoming sensory information. B — Holds information for around 15–25 seconds. D — Stores information relatively permanently. 5. Rehearsal keeps information active and helps it enter long-term memory. Elaborative rehearsal connects information to meaning and prior knowledge, while simple rehearsal repeats it. 6. Types of long-term memory: Lafayette is in Louisiana: Semantic First week of college: Episodic Riding a bicycle: Procedural 7. Explicit (declarative) memory. 8. Retrieval failure 9. Recall vs. recognition: Recall: Remembering an answer without choices, such as a fill-in-the-blank question. Recognition: Identifying an answer among choices, such as a multiple-choice question. Chapter 8 – Cognition and Language 1. Cognition 2. Concepts; a prototype is the most typical example of a concept. 3. Category: Furniture. Prototype: Chair Less typical member: Beanbag chair 4. Deductive reasoning moves from general principles to specific conclusions. Inductive reasoning moves from specific observations to general conclusions. Examples: Deductive: All humans need sleep. I am human, so I need sleep. Inductive: Several students who study regularly earn good grades, so studying may help students earn good grades. 5. Matching: A — A strategy that guarantees a solution. B — A mental shortcut that can lead to errors. C — Judging likelihood by how easily examples come to mind. D — Preferring an option because it is familiar. E — Giving more weight to outcomes closer to the present. 6. Confirmation bias 7. Problem-solving steps: Identify and define the problem. Develop and evaluate possible solutions. Implement a solution and evaluate the results. 8. Well-defined vs. ill-defined: Well-defined: Clear goal and rules; example: solving a math equation. Ill-defined: Unclear goal or multiple solutions; example: choosing a career. 9. Subgoaling 10. Functional fixedness 11. Convergent thinking narrows ideas to one correct answer. Divergent thinking generates many possible ideas. 12. Example of insight: Realizing you can stand on a chair to reach a high shelf. It depends on reorganizing your understanding of a problem. 13. Language is communication through symbols arranged according to systematic rules. 14. Nativist approach; language acquisition device (LAD). 15. Interactionist approach; biological predispositions and environmental circumstances. Final reflection These last answers are personal, so change them if they don't describe you. How prepared do you feel? 3 Three concepts most confident in: Classical conditioning Types of memory Reinforcement and punishment Three concepts least confident in: Stages of sleep Reinforcement schedules Reasoning and problem solving How will you strengthen your understanding? I plan to review my study guide, practice questions, and spend more time on the concepts I don't understand.

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🦠 MICROBIOLOGY — WEEK 1 STUDY NOTES Microbiology Foundations Assigned reading: 1.1 What Our Ancestors Knew 1.2 A Systematic Approach 1.3 Types of Microorganisms 3.1 Spontaneous Generation 3.2 Foundations of Modern Cell Theor/y 1.1 What Our Ancestors Knew First: What is microbiology? Microbiology = the study of very small organisms and infectious agents. Microorganism / microbe = an organism that is generally too small to see without a microscope. Examples include: * Bacteria * Archaea * Fungi such as yeast and molds * Protozoa * Microscopic algae * Some parasites Viruses are also studied in microbiology, although viruses are acellular, meaning they are not made of cells. Important idea Microbes are NOT automatically bad. Many microbes are harmless or helpful. They: * help produce food * live naturally in and on our bodies * help ecosystems function * can be used to make medicines and other products Only some microbes cause disease. 🍞 Humans Used Microbes Before They Knew Microbes Existed Humans were using microorganisms for thousands of years before microscopes existed. One of the biggest examples is: Fermentation Fermentation = microorganisms change sugars/carbohydrates into substances such as: * alcohol * gases * organic acids Microbes involved can include: bacteria + yeast + molds Humans used fermentation to make: * bread * cheese * yogurt * beer * wine * pickled vegetables Easy example Yeast eats/metabolizes carbohydrates in bread dough. ↓ Yeast produces carbon dioxide (CO₂). ↓ Gas becomes trapped in the dough. ↓ Bread rises. Remember Fermentation = microbes changing sugars. ⸻ 🧊 Ötzi the Iceman Ötzi was a preserved human mummy approximately 5,300 years old. Scientists found evidence that he had: * Trichuris trichiura → a parasitic worm * Borrelia burgdorferi → bacterium that causes Lyme disease He also carried a fungus called Fomitopsis betulinus, which has laxative and antibiotic properties. Why does this matter? It shows that ancient people were trying to treat disease long before they understood microorganisms. ⸻ 🦠 Early Ideas About Disease Before microscopes, people didn’t know exactly what caused disease. Some cultures believed disease came from: * supernatural forces * angry gods * fate * bad air But some people began to realize that disease might spread between people. ⸻ Quarantine Ancient societies sometimes separated sick people from healthy people. This is called: Quarantine = separating potentially infected people to prevent disease spread. Even though they didn’t know what bacteria or viruses were, they understood that some diseases could spread. ⸻ 🚿 Sanitation Ancient civilizations also developed ways to improve sanitation. Examples included: * clean-water systems * drainage systems * sewers * aqueducts This was important because removing human waste and providing cleaner water can reduce disease transmission. ⸻ Important People From Early Medicine Hippocrates Who? Greek physician. Important idea: Disease had natural causes, rather than always being caused by supernatural forces. He is commonly called: “Father of Western Medicine.” Remember Hippocrates → disease has natural causes. ⸻ Thucydides Thucydides survived the Athenian plague. He noticed that people who survived the disease usually did not become sick from the same disease again while caring for infected people. This was an early observation of: Immunity Immunity = the body’s ability to resist a particular infection/disease. Remember Thucydides → early idea of immunity. ⸻ Marcus Terentius Varro Varro proposed that extremely tiny creatures that could not be seen might cause disease. He described tiny creatures entering the body through the: * mouth * nose This was an important idea because microscopes did not yet exist. Remember Varro → invisible tiny creatures may cause disease. ⸻ Ibn Sina / Avicenna Ibn Sina wrote the important medical work: Canon of Medicine He described ideas involving: * contagion * spread of disease * transmission through breath * isolation of sick people His work contributed to ideas that later became important for quarantine and infectious-disease control. ⸻ 🔬 Birth of Microbiology The development of the microscope completely changed science. For the first time, scientists could actually see microorganisms. ⸻ Antonie van Leeuwenhoek Extremely important name. In 1675, Antonie van Leeuwenhoek used powerful simple microscopes to observe tiny organisms. He called them: “animalcules” Today we know that some of the organisms he observed were: * bacteria * protists Remember Leeuwenhoek → first to describe bacteria/microorganisms seen through a microscope. Think: Leeuwenhoek = LOOKED at microbes. ⸻ ⭐ Golden Age of Microbiology Approximately: 1857–1914 During this period, scientists made major discoveries connecting microorganisms with: * fermentation * disease * medicine * infection Two huge names: Louis Pasteur and Robert Koch You are going to see both names repeatedly in microbiology. ⸻ Louis Pasteur Pasteur showed that microorganisms are responsible for fermentation. He also developed: Pasteurization Pasteurization = using controlled heat to kill/reduce microorganisms that cause spoilage or disease. He also worked on vaccines, including a vaccine against: rabies Pasteur will become especially important again in Section 3.1. Remember Pasteur → fermentation → pasteurization → vaccines → helped prove germ theory → disproved spontaneous generation ⸻ Robert Koch Koch showed that particular microbes could cause particular diseases. He identified microorganisms associated with diseases including: * anthrax * tuberculosis * cholera Remember Koch → specific microbe → specific disease. ⸻ 🧪 Basic Microbiology Laboratory Tools You don’t need to master these yet, but recognize the terms. Microscope → magnifies microbes. Stains/dyes → add color/contrast so microorganisms are easier to see. Growth media → nutrients/material used to grow microorganisms in the laboratory. Petri dish → shallow dish commonly used to hold growth media. Test tube → can contain liquid or solid/semi-solid growth media. Bunsen burner → flame that can be used during laboratory sterilization procedures. These will make much more sense once you start doing microbiology lab work. ⸻ 1.2 A Systematic Approach Now we move from discovering microbes to: “How do scientists organize and name all these different organisms?” ⸻ Taxonomy Definition Taxonomy = classification, description, identification, and naming of living organisms. Think: Taxonomy = biological organization system. ⸻ Carolus Linnaeus Linnaeus developed an important system for classifying organisms. The main levels used in classification include: Kingdom → Phylum → Class → Order → Family → Genus → Species A common memory trick: K P C O F G S King Philip Came Over For Good Soup You should know the order. ⸻ Species Species is the most specific/basic taxonomic level in this hierarchy. Example: Homo sapiens Homo = genus sapiens = species ⸻ Binomial Nomenclature Very important term. Binomial = two names. Every organism receives a scientific name consisting of: Genus + species Example: Homo sapiens Rules: Genus * first letter CAPITALIZED species * lowercase Both should normally be italicized when typed. Correct: Homo sapiens Not: Homo Sapiens ❌ homo sapiens ❌ Homo Sapiens ❌ ⸻ 🌳 Phylogeny Phylogeny = evolutionary relationship/history between organisms. Scientists can represent these relationships with a: Phylogenetic tree A phylogenetic tree shows how organisms are believed to be evolutionarily related. Organisms with a more recent common ancestor are considered more closely related. ⸻ Classification Changed Over Time Scientific classification did not stay the same. Linnaeus Originally divided nature into kingdoms including: * animals * plants * minerals The mineral kingdom was later abandoned. ⸻ Ernst Haeckel Added: Protista for many unicellular organisms. He later proposed Monera for organisms lacking nuclei. Remember: Haeckel → Protista ⸻ Robert Whittaker Developed a five-kingdom system: Animalia Plantae Fungi Protista Monera ⸻ 🧬 Carl Woese — VERY IMPORTANT Carl Woese used differences in: ribosomal RNA (rRNA) to study evolutionary relationships. His work helped establish the modern: THREE-DOMAIN SYSTEM 🟠 Bacteria 🟣 Archaea 🔵 Eukarya This is very important for your Week 1 material. Memorize: BAE Bacteria Archaea Eukarya ⸻ Bergey’s Manuals These are important references used in bacteriology. They help scientists: * classify bacteria * identify bacteria You probably don’t need every detail yet, but recognize the name: Bergey’s Manual ⸻ How Can Bacteria Be Identified? Scientists can identify microorganisms using things such as: Biochemical tests Look at chemical/metabolic characteristics. DNA/RNA analysis Examines genetic material. Serological tests Use reactions involving antibodies/antigens. ⸻ 1.3 Types of Microorganisms This section is VERY IMPORTANT. You need to understand the major groups. ⸻ 🌎 Three Domains of Life Again: 1. Bacteria 2. Archaea 3. Eukarya ⸻ Before We Continue: Two Big Cell Types You will hear these words constantly: PROKARYOTE vs EUKARYOTE Prokaryotic cells DO NOT have a membrane-bound nucleus. Bacteria = prokaryotic Archaea = prokaryotic Eukaryotic cells DO have a membrane-bound nucleus. Examples include: * animals * plants * fungi * protozoa * algae Super important: Prokaryote = NO nucleus Eukaryote = HAS nucleus ⸻ 🦠 BACTERIA Bacteria are: * unicellular * prokaryotic * found almost everywhere Some bacteria are helpful. Some bacteria can cause disease. Many bacteria have cell walls. You’ll learn much more about bacterial structures later. ⸻ 🌋 ARCHAEA Archaea are also: * unicellular * prokaryotic Like bacteria, they do not have a nucleus. BUT: Archaea ≠ Bacteria They differ in: * genetics * evolutionary history * metabolic pathways * cell membrane composition * cell wall composition Archaea occur in many environments. Important textbook point No archaea have been identified as human pathogens. Remember Bacteria + Archaea = Prokaryotes ⸻ 🔵 EUKARYA Eukaryotic microorganisms include: Algae Protozoa Fungi Helminths These have eukaryotic cells. ⸻ 🌿 ALGAE Algae can be: * unicellular * multicellular They are similar to plants in an important way: They perform photosynthesis. Photosynthesis = using light energy to make chemical energy/food. Remember: Algae → photosynthesis. ⸻ 🧫 PROTOZOA Protozoa are: * unicellular * eukaryotic * structurally more complex than bacteria Many are capable of movement. Remember Protozoa → single-celled eukaryotes, often motile. Motile = able to move. ⸻ 🍄 FUNGI Fungi studied in microbiology include: Yeasts Usually unicellular. Molds Usually grow as multicellular filament-like structures. Examples of fungi can be microscopic even though other fungi, such as mushrooms, are large. Remember Fungi → yeast + molds ⸻ 🪱 HELMINTHS Helminths = parasitic worms. You may think: “A worm isn’t microscopic. Why is it in microbiology?” Good question. Adult worms may be large enough to see. BUT their: * eggs * larvae can be microscopic. Therefore they are studied in microbiology. ⸻ 🦠 VIRUSES Viruses are different from cellular organisms. Viruses are ACELLULAR. Acellular = not made of cells. Viruses cannot reproduce independently. They require a: Host cell to reproduce. Remember Virus = acellular + requires host to reproduce ⸻ ⭐ Major Microorganism Comparison Group Cell type Nucleus? Important idea Bacteria Prokaryotic ❌ Some cause disease Archaea Prokaryotic ❌ Different from bacteria; no known human pathogens Fungi Eukaryotic ✅ Yeasts + molds Protozoa Eukaryotic ✅ Unicellular, often motile Algae Eukaryotic ✅ Photosynthesis Helminths Eukaryotic ✅ Parasitic worms Viruses Acellular No cell Need host to reproduce 🔥 This table is worth knowing very well. ⸻ 3.1 Spontaneous Generation This is mainly about one historical question: Where does life come from? People once believed: Spontaneous Generation Spontaneous generation = the belief that living organisms can arise from nonliving material. Examples people once believed: rotting meat → maggots mud → frogs old food → microorganisms Today we know this idea is incorrect. ⸻ Francesco Redi Redi tested whether maggots appeared spontaneously from meat. He compared meat that flies could reach with meat protected from flies. Result Maggots appeared when flies could access the meat. This suggested: Maggots came from flies — not directly from the meat. Remember Redi → meat + flies + maggots ⸻ John Needham Needham performed experiments with broth. He boiled broth and then observed microbial growth afterward. He interpreted this as evidence supporting: Spontaneous generation. Remember Needham → supported spontaneous generation. ⸻ Lazzaro Spallanzani Spallanzani disagreed. He boiled broth for longer and sealed the containers more carefully. The sealed broth did not show microbial growth. He argued that microbes came from contamination from the environment rather than being generated spontaneously. Remember Spallanzani → argued against spontaneous generation. ⸻ 🦢 Louis Pasteur’s Swan-Neck Flask Experiment This is VERY IMPORTANT. Pasteur used flasks with long curved necks. Why the curved neck? Air could enter the flask. BUT: Dust and microorganisms became trapped in the curved neck. So the broth remained uncontaminated. When microorganisms could reach the broth, microbial growth occurred. Conclusion Microorganisms did NOT spontaneously appear. They came from microorganisms already present in the environment. Pasteur helped establish the principle: “Life comes from life.” Exam memory Pasteur → swan-neck flask → disproved spontaneous generation. ⸻ 3.2 Foundations of Modern Cell Theory Now we move from: “Where do microbes come from?” to: “What is life made of?” Answer: CELLS ⸻ 🧬 Cell Theory The textbook describes the development of the idea that cells are the fundamental units of life. The central ideas are: 1. All living organisms are made of one or more cells. 2. The cell is the fundamental/basic unit of life. 3. Cells arise from pre-existing cells. Think: Life → cells → cells come from cells. ⸻ Robert Hooke In the 1660s, Robert Hooke examined cork with a microscope. He saw tiny compartments and called them: “cells” Remember Hooke → named/described cells. Don’t mix him up with Leeuwenhoek: Hooke → cells Leeuwenhoek → microorganisms ⸻ Matthias Schleiden Schleiden studied plants. He concluded that: Plants are made of cells. Remember: Schleiden → plants ⸻ Theodor Schwann Schwann studied animals. He concluded: Animals are made of cells. Remember: Schwann → animals ⸻ Robert Remak Remak provided evidence that cells form through the division of existing cells. ⸻ Rudolf Virchow Virchow strongly promoted the idea: Cells come from other cells. So: New cells do not spontaneously appear. ⸻ Easy Scientist Memory Hooke → saw/named cells Schleiden → plants Schwann → animals Remak/Virchow → cells come from existing cells ⸻ 🧬 Endosymbiotic Theory This sounds difficult, but the basic idea is simple. Endosymbiotic theory says: Mitochondria and chloroplasts were originally bacteria-like prokaryotic cells. A larger ancestral cell engulfed them. Instead of being destroyed, the cells developed a mutually beneficial relationship. Eventually, the engulfed bacteria evolved into: Mitochondria and Chloroplasts inside eukaryotic cells. ⸻ Evidence for Endosymbiotic Theory Mitochondria and chloroplasts have similarities to bacteria. They have: Their own DNA Their DNA resembles bacterial DNA. Their own ribosomes Their ribosomes resemble bacterial ribosomes. They reproduce through a process similar to binary fission Binary fission is a major way bacteria reproduce. Easy version Mitochondria and chloroplasts act strangely like bacteria because their ancestors were bacteria. ⸻ Lynn Margulis Lynn Margulis helped develop and promote the modern endosymbiotic theory. Remember Margulis → endosymbiotic theory ⸻ 🦠 Miasma Theory vs Germ Theory This distinction is very important. Miasma Theory Old idea: Disease comes from “bad air” associated with rotting material. Think: Bad smell → disease. This theory was eventually replaced. ⸻ Germ Theory Germ theory = many diseases are caused by microorganisms. Think: Microbe enters/infects body → disease Scientists whose work helped establish germ theory included: * Ignaz Semmelweis * John Snow * Louis Pasteur * Joseph Lister * Robert Koch ⸻ 🧼 Ignaz Semmelweis Semmelweis worked around childbirth. He noticed that patients treated by doctors and medical students had much higher rates of puerperal fever than patients cared for by midwives. Medical students often went from: autopsies → examining living patients without washing their hands. Semmelweis introduced handwashing with chlorinated lime solution. Result Maternal deaths fell dramatically. Remember Semmelweis → HANDWASHING ⸻ 💧 John Snow John Snow investigated cholera outbreaks in London. He connected cholera cases with: contaminated water. His work helped show that disease wasn’t simply coming from “bad air.” He is important in the history of: Epidemiology Epidemiology = study of disease patterns and spread in populations. Remember Snow → cholera + contaminated water + epidemiology ⸻ Joseph Lister Lister applied ideas about microorganisms to surgery. He promoted: * handwashing * cleanliness * sterilization * antiseptic techniques He used carbolic acid (phenol) to reduce infections during surgery. Result Surgical infections decreased. Remember Lister → antiseptic surgery ⸻ Robert Koch — Again Koch developed: Koch’s postulates These helped scientists determine whether a particular microorganism causes a particular disease. Basic idea: specific microorganism → specific disease You will learn Koch’s postulates in more detail later. ⸻ 🔥 WEEK 1 — PEOPLE YOU NEED TO KNOW Scientist/person Remember THIS Hippocrates Disease has natural causes Thucydides Early observation of immunity Varro Invisible creatures may cause disease Leeuwenhoek Observed microbes/bacteria Linnaeus Taxonomy + naming organisms Haeckel Added Protista Whittaker Five kingdoms Woese Three domains; used rRNA Redi Meat + flies + maggots Needham Supported spontaneous generation Spallanzani Evidence against spontaneous generation Pasteur Swan-neck flask; fermentation; germ theory Hooke Described/named cells Schleiden Plants are made of cells Schwann Animals are made of cells Remak/Virchow Cells come from cells Margulis Endosymbiotic theory Semmelweis Handwashing John Snow Cholera + contaminated water Lister Antiseptic surgery Koch Specific microbes cause specific diseases ⸻ 🚨 THE 15 THINGS I WOULD MEMORIZE FIRST Don’t try to memorize every paragraph tonight. Start here: 1. Microbiology = study of microorganisms. 2. Fermentation uses microbes to convert sugars into products such as alcohol, gases, or acids. 3. Leeuwenhoek observed microorganisms. 4. Pasteur and Koch were major scientists during the Golden Age of Microbiology. 5. Taxonomy = classification and naming of organisms. 6. Binomial nomenclature = Genus + species. 7. Three domains = Bacteria, Archaea, Eukarya. 8. Bacteria + Archaea = prokaryotes. 9. Prokaryote = no membrane-bound nucleus. 10. Eukaryote = has membrane-bound nucleus. 11. Virus = acellular and needs a host to reproduce. 12. Spontaneous generation = life arises from nonliving matter. 13. Pasteur’s swan-neck flask helped disprove spontaneous generation. 14. Cell theory = organisms are made of cells, cells are the basic unit of life, and cells come from existing cells. 15. Germ theory = microorganisms can cause disease. ⸻ 🧠 Super-Simple Week 1 Mental Map Think about the entire week’s reading as one story: PART 1 — Humans discover microbes People used microbes before knowing they existed. ↓ Leeuwenhoek sees them. ↓ Scientists begin studying them. ⸻ PART 2 — Scientists organize microbes Linnaeus → Taxonomy ↓ Woese → 3 domains ↓ Bacteria | Archaea | Eukarya ⸻ PART 3 — Scientists ask where life comes from People believed in spontaneous generation. ↓ Redi + Spallanzani question it. ↓ Pasteur disproves it. ↓ Life comes from existing life. ⸻ PART 4 — Scientists understand cells Hooke → cells ↓ Schleiden → plants Schwann → animals ↓ Remak/Virchow → cells come from cells ↓ Cell Theory ⸻ PART 5 — Scientists understand disease Old: Miasma = bad air causes disease ❌ ↓ New: Germ theory = microorganisms can cause disease ✅ ↓ Semmelweis → handwashing Snow → contaminated water Lister → antiseptic surgery Pasteur → microbes Koch → specific microbe causes specific disease