Comprehensive Study Notes for Biology 160

Biology 160, Winter 2024 - Comprehensive Study Notes

Quiz #1

  • Total Points: 40
  • Time: 60 minutes
Questions:

  1. Phenotype vs Genotype

    • Definition of Phenotype: The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences.
    • Definition of Genotype: The genetic constitution of an individual, often represented by allele composition.
    • Personal Example of Phenotype: Black eyes, black hair, brown skin.

  2. Interesting Biology Fact (1 point)

    • Response: The most interesting thing learned so far is about cancer.

Lab Quiz Week 2

  • Worth 2 points
Questions:

  1. Closest Lens to Slide in Compound Microscope

    • Answer: A. Objective Lens

  2. Species of Animal Cells Under Observation

    • Answer: B. Homo sapiens (human)

  3. Total Magnification with 40x Objective Lens

    • Answer: C. 400x

  4. Visible Organelles in Green Leaf Cells

    • Answer: Chlorophyll, cell wall.

Lab Quiz Week 3

  • Worth 2 points
Questions:

  1. Movement of Water in Salt Solutions

    • A cell with a 1% salt concentration placed in a 20% salt solution will have water moving out of it.

  2. French Fries Made in Lab

    • A. 24.

  3. Soaking Solution Contents

    • B. Iodine.

  4. Number of Beakers for Soaking Potato Pieces

    • A. 2

  5. Concentration of Second Most Concentrated Solution (3.0% NaCl)

    • Answer: 1.5% NaCl.

Lab Quiz Week 4

  • Worth 2 points
Questions:

  1. Catalase Enzyme Function

    • Catalase decomposes hydrogen peroxide (H₂O₂) into water and oxygen.

  2. Active Site Definition

    • The active site is the specific region of an enzyme where substrate molecules bind and undergo a chemical reaction.

  3. pH Levels Exposed to Catalase Enzyme

    • Enzyme will be exposed to several different levels of pH (not specified in transcript).

  4. Neutral pH Level

    • Answer: 7

  5. Function of Buffers

    • Buffers stabilize the pH of a solution by neutralizing small amounts of added acid or base.

Lab Quiz Week 5

  • Worth 2 points
Questions:

  1. Flammable Item Set on Fire

    • Answer: Specified object (not clear in transcript).

  2. Biochamber 2000 Measures

    • A. CO2 and H2O

  3. O2 Level in Bright Light

    • A. O2 level should rise.

  4. Gases Released by Burning Carbohydrates

    • H₂O and CO2.

  5. Organism Conducting Photosynthesis

    • B. Spinach.

Lab Quiz #6

  • Worth 3 points
Questions:

  1. Simulating Genes on Chromosomes

    • Describes DNA information pertaining to genes.

  2. Paper Models of Chromosomes

    • Device: Not mentioned in transcript.

  3. Type of Human Gamete

    • Answer: Sperm or egg.

  4. Number of Parents in Sexual Reproduction

    • Answer: Two parents.

  5. Number of Parents in Asexual Reproduction

    • Answer: One parent.

  6. Stages of Mitosis Holding Sister Chromatids Together

    • Prophase, Metaphase, Telophase.

Lab Quiz #7

  • Worth 2 points
Questions:

  1. Polymerase Chain Reaction (PCR) Function

    • B. It makes many copies of DNA molecules.

  2. Number of Suspects DNA Investigated

    • C. 10.

  3. Volume of DNA Samples Used

    • C. Millionths of liters (μL).

  4. Temperature Required to Split DNA Strands

    • A. 94 °C.

Lab Quiz #8

  • Worth 2 points
Questions:

  1. Movement of DNA Fragments in Gel

    • Smaller fragments move faster than larger ones.

  2. Electric Charge of DNA Movement

    • A. Negatively charged DNA moves toward the positively charged electrode.

  3. Short Tandem Repeats (STR)

    • STRs are repeating sequences of DNA that are useful in forensics.

  4. Visibility of DNA with Naked Eye

    • No, individual DNA molecules are not visible.

Genetics Quizzes Part A

  • Worth 40 Points Total
  • Time: 60 Minutes
Topics and Questions:

  1. Identifying Heterozygous Plants on Diagram

    • Answer choices regarding specific plants.

  2. Chance of Purple-Flowering F2 Plant Being Homozygous Dominant

    • Choices regarding probabilities.

  3. F2 Genotypes and Phenotypes in Dihybrid Cross

    • Analysis of flower color and height traits.

Genetic Pedigree Analysis and Discussion

  • Understanding of Genetic Disorders:
    • Analysis of pedigree for genetic conditions like PDSD and inheritance patterns.

Molecular Genetics and Biochemical Pathways

  • Understanding DNA Transcription and Translation Processes:
    • Mechanisms, structures involved (tRNA, mRNA), and amino acid sequencing.

Evolution and Natural Selection Discussion

  • Application of Darwin’s Principles:
    • Situations demonstrating evolution through natural selection.

Photosynthesis and Cellular Respiration Comparison

  • Key Points:
    • Comparison of processes, reactants, and end products for cellular respiration and photosynthesis.

Protein Structure and Function

  • Understanding Levels of Protein Structure:
    • Primary, Secondary, and Tertiary structures, including stabilizing forces (covalent bonds, hydrogen bonds, etc.).

Important Notes:

  • These notes should be used as a reference for studying important biological concepts and laboratory procedures in Biology 160, Winter 2024.
  • Review each section in detail for quiz preparations and understanding complex biological systems.