Bio 2 Mid-term Exam (Spring 2014)

60 Questions | Total Attempts: 35

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Bio 2 Mid-term Exam (Spring 2014)

Questions and Answers
  • 1. 
    The process by which a DNA molecule is copied is ___.
    • A. 

      Transcription

    • B. 

      Translation

    • C. 

      Replication

    • D. 

      Mutation

  • 2. 
    There are literally hundreds of thousands of different organic molecules. Which statement best explains how this is possible?
    • A. 

      Elements can make an unlimited number of chemical bonds.

    • B. 

      Carbon is unique in that it can make four chemical bonds.

    • C. 

      Carbon can make twenty bonds to other carbon atoms.

    • D. 

      Organic molecules are acidic.

  • 3. 
    Which of the following is NOT true of water?
    • A. 

      It resists change in temperature.

    • B. 

      It is considered the "universal solvent".

    • C. 

      It can diffuse through lipids easily.

    • D. 

      It has unique properties due to its polarity.

  • 4. 
    Organic compounds always contain the element ____.
    • A. 

      Carbon

    • B. 

      Nitrogen

    • C. 

      Oxygen

    • D. 

      Organium

  • 5. 
    How many amino acids are found in humans?
    • A. 

      12

    • B. 

      16

    • C. 

      20

    • D. 

      24

  • 6. 
    The functional group -NH2 is called the ____.
    • A. 

      Amino group

    • B. 

      Acid group

    • C. 

      Hydroxide group

    • D. 

      Fatty acid

  • 7. 
    Which of the following is a structural form of carbohydrate?
    • A. 

      Cellulose

    • B. 

      Starch

    • C. 

      Enzyme

    • D. 

      RNA

  • 8. 
    Which of the following monomers make up a lipid?
    • A. 

      Glycerol and fatty acid

    • B. 

      Glycerol and amino acids

    • C. 

      Glycerol and nucleic acids

    • D. 

      Thymine and guanine

  • 9. 
    Which of the following is NOT a nucleotide found in DNA?
    • A. 

      Adenine

    • B. 

      Cytosine

    • C. 

      Uracil

    • D. 

      Guanine

  • 10. 
    Which of the following is a polymer of nucleotides?
    • A. 

      Nucleic Acid

    • B. 

      Protein

    • C. 

      Carbohydrate

    • D. 

      Lipid

  • 11. 
    Which of the following is a polymer of amino acids?
    • A. 

      Protein

    • B. 

      Carbohydrate

    • C. 

      Lipid

    • D. 

      Nucleic Acid

  • 12. 
    What is the main function of the Krebs cycle?
    • A. 

      Breaking down pyruvate molecules to form molecules of NADH and oxygen

    • B. 

      Forming citric acid to make NADH, water, and carbon dioxide

    • C. 

      Producing molecules that carry high-energy electrons to the electron transport chain

    • D. 

      Bonding coenzyme A to pyruvate

  • 13. 
    Which stage of the cell cycle is illustrated on the right?
    • A. 

      Prophase

    • B. 

      Cytokinesis

    • C. 

      Telophase

    • D. 

      Anaphase

  • 14. 
    Which phrase best describes the electron transport chain in photosynthesis?
    • A. 

      A chain of photosynthetic proteins located in the stroma

    • B. 

      A collection of enzymes used to make ADP

    • C. 

      A series of proteins located in the thylakoid membrane

    • D. 

      A group of enzymes that carries energy to the Calvin cycle

  • 15. 
    The process by which plants use sunlight to make glucose is called ___.
    • A. 

      Photosynthesis

    • B. 

      Cellular respiration

    • C. 

      The cell cycle

    • D. 

      Mitosis

  • 16. 
    Which of the following takes place in the light-dependent reactions of photosynthesis?
    • A. 

      Sugars are made.

    • B. 

      Energy is captured.

    • C. 

      Chlorophyll is pumped.

    • D. 

      Carbon dioxide is formed.

  • 17. 
    The main light-absorbing molecules found in plant leaves are called
    • A. 

      Chloroplasts

    • B. 

      Thylakoids

    • C. 

      Chlorophyll

    • D. 

      Grana

  • 18. 
    Which of the following statements best describes the process of photosynthesis?
    • A. 

      Plants use oxygen to make simple sugars.

    • B. 

      Chlorophyll builds sugars in the thylakoid membrane.

    • C. 

      Light breaks down water molecules and releases carbon dioxide.

    • D. 

      Chloroplasts absorb sunlight and store chemical energy.

  • 19. 
    What is the term for the jelly-like substance that is contained inside the cell membrane?
    • A. 

      Cytoplasm

    • B. 

      Nucleus

    • C. 

      Organelle

    • D. 

      DNA

  • 20. 
    Which of the following is a characteristic of S phase?
    • A. 

      Cell growth and normal function.

    • B. 

      Cell growth and preparation for mitosis.

    • C. 

      Nuclear membrane reforms.

    • D. 

      DNA is replicated.

  • 21. 
    Which stage of mitosis is illustrated on the right?
    • A. 

      Prophase

    • B. 

      Metaphase

    • C. 

      Telophase

    • D. 

      Anaphase

  • 22. 
    Which of the following is a characteristic of prophase?
    • A. 

      Nuclear membrane breaks down.

    • B. 

      Chromosomes line up in the middle of the cell.

    • C. 

      Sister chromatids are pulled to opposite sides of the cell.

    • D. 

      The cytoplasm splits.

  • 23. 
    Which stage of mitosis is illustrated on the right?
    • A. 

      Prophase

    • B. 

      Metaphase

    • C. 

      Telophase

    • D. 

      Anaphase

  • 24. 
    What is the main function of the Golgi apparatus?
    • A. 

      Convert solar energy to chemical energy

    • B. 

      Communicate with other cells

    • C. 

      Process and deliver proteins

    • D. 

      Copy genetic material

  • 25. 
    Which of the following is a characteristic of G2 phase?
    • A. 

      Cell growth and normal function.

    • B. 

      Cell growth and preparation for mitosis.

    • C. 

      Nuclear membrane reforms.

    • D. 

      DNA is replicated.

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