Biomed 100 Practice Quiz
Chapter 4, Spring 2008
Quizzes | Home
Multiple Choice - One Correct Choice Per Question
Roll mouse over choices to find best answer (it will "light up").
 Please do not click on any of the choices.
If you accidentally click, use your Backspace key or Back button to get back here.
    1. True or false? The subdivision of metabolism associated with growth and repair is catabolism.
      1. True.
      2. False.
        3.

    2. Enzymes
      1. are usually made of protein
      2. are usually made of messenger RNA
      3. control metabolism
      4. both A. and C.
        5.
      5. both B. and C.

    3. Any one enzyme typically functions
      1. at very small quantities, due to the fact that it is not consumed in the processes that they facilitate
      2. over very wide ranges of pH levels
      3. in series known as "metabolic pathways"
      4. both A. and C.
        5.
      5. all of the above

    4. Which one of the following occurs first in the catabolism of glucose?
      1. the glucose molecule is "broken" into two halves that contain six (6) carbon atoms each
      2. the glucose molecule is "broken" into two halves that contain three (3) carbon atoms each
        3.
      3. the glucose molecule is "broken" into two (2) molecules of carbon dioxide
      4. the glucose molecule is converted to six (6) molecules of ATP

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

    6. Under what conditions do muscle fibers utilize anaerobic respiration?
      1. when they are using lactic acid as an energy source
      2. when they are using fatty acids as an energy source
      3. when they are so relaxed that they do not need any oxygen
      4. when they are working so intensely that oxygen cannot be delivered rapidly enough
        5.

    7. The presence of myoglobin in muscle fibers is likely to
      1. make the muscle stronger
      2. make the muscle able to store oxygen
      3. make the muscle darker in appearance
      4. both A. and B.
      5. both B. and C.
        6.

    8. Compared to "slow twitch" muscle, "fast twitch" muscle
      1. contains larger, stronger fibers
        2.
      2. has a more highly developed blood supply
      3. both of the above
      4. none of the above

    9. Mild-to-moderate exercise can be more prolonged than intense exercise because
      1. aerobic respiration allows cells to produce more ATP molecules per glucose molecule.
      2. the waste product of aerobic respiration is a gas that is easily exhaled.
      3. both of the above
      4. none of the above

    10. In an adequately nourished individual, muscles are likely to use primarily _?_ as an energy source during prolonged mild-to-moderate exercise.
      1. glucose
      2. lactic acid
      3. carbon dioxide
      4. amino acids from breakdown of proteins
      5. fatty acids from breakdown of triglycerides (fats)
        6.