Biomed 100 Practice Quiz
Chapter 4, Spring 2007
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Multiple Choice - One Correct Choice Per Question
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  1. Normally, the breakdown of _?_ supplies most of the energy needed by cells.
    1. RNA
    2. lipids
    3. protein
    4. carbohydrates
      5.

  2. The catalysts that control chemical processes and metabolism in the body
    1. are generally known as enzymes
    2. are generally composed of protein
    3. generally function in linear "pathways" that build up or break down substances
    4. all of the above
      5.

  3. Synthesis reactions in the body
    1. occur during growth
    2. require an input of energy
    3. both of the above
      4.
    4. none of the above

  4. Enzyme molecules
    1. affect the speed of a chemical reactions
      2.
    2. are usually consumed rapidly in the catalytic process
    3. both of the above
    4. none of the above

  5. Which one of the following provides the large molecules required for cell growth and repair?
    1. hydrolysis
    2. anabolism
      3.
    3. catabolism
    4. aerobic respiration
    5. anaerobic respiration

  6. The first stage of glucose catabolism is called _?_ and it _?_ require oxygen.
    1. glycolysis / does
    2. glycolysis / does not
      3.
    3. the citric acid cycle / does
    4. the citric acid cycle / does not

  7. The oxygen required by brain cells is used in the _?_ stage of glucose catabolism, which is called _?_.
    1. first / glycolysis
    2. first / the citric acid cycle
    3. second / glycolysis
    4. second / the citric acid cycle
      5.
    5. third / anabolism

  8. The final products of aerobic respiration are all of the following except...
    1. oxygen
      2.
    2. water
    3. carbon dioxide
    4. heat
    5. ATP

  9. The effects of endurance (cardiovascular) training on skeletal muscle fibers include increased blood flow, mitochondria, and myoglobin. These changes generally enhance the person's capacity for...
    1. aerobic respiration
      2.
    2. lactic acid production
    3. both of the above
    4. none of the above

  10. The large, powerful muscle fibers that may be developed by strength training are _?_ fibers, which are relatively _?_ in appearance.
    1. fast twitch / light
      2.
    2. slow twitch / light
    3. fast twitch / dark
    4. slow twitch / dark

  11. It is mainly the function of _?_ to hold energy in its "terminal phosphate bond."
    1. ATP
      2.
    2. DNA
    3. RNA
    4. phospholipids
    5. triglycerides