Biomed 100 Practice Quiz
Chapter 4, Fall 2007

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1. What type of process prevails during periods of cell growth and repair?
   1. anabolic
   2. catabolic
   3. hypertonic
   4. anaerobic
   
   
2. The initial breakdown of glucose
   1. occurs in the nucleus and oxygen is required
   2. occurs in the plasma membrane and oxygen is required
   3. occurs in the cytoplasm and oxygen is not required
   4. occurs in the plasma membrane and oxygen is not required
   
   
3. The aerobic breakdown of fuels results in the production of
   1. oxygen
   2. lactic acid
   3. carbon dioxide
   
   
4. Normally, it is a primary function of _?_ to be broken down to serve as an energy source.
   1. protein
   2. enzymes
   3. carbohydrates
   4. nucleic acids
   
   
5. The anabolic joining of three fatty acids to a glycerol molecule produces
   1. a steroid
   2. a triglyceride
   3. a complex carbohydrate
   4. a protein with tertiary structure
   
   
6. Aerobic respiration produces more _?_ than does anaerobic respiration.
   1. ATP
   2. oxygen
   3. lactic acid
   4. pyruvic acid
   
   
7. The lactic acid occasionally produced by muscle fibers is eventually metabolized by
   1. the liver and the heart
   2. fat and connective tissue
   3. the brain and the spinal cord
   4. none of the above (lactic acid must be excreted from the body)
   
   
8. Slow twitch muscle fibers are generally able to receive and utilize large quantities of _?_ delivered by the cardiovascular system.
   1. ATP and ADP
   2. fuel and oxygen
   3. myosin and myoglobin
   4. carbon dioxide and lactic acid