EXSS 376 EXAM 1 QUESTIONS AND ANSWERS
What glycolytic enzyme(s) regulate anaerobic glycolysis?
A. oxygen
B. hexokinase
C. enolase
D. phosphofructokinase - CORRECT ANSWER✅✅B, D
_____represents the period of time when anaerobic energy systems meet the metabolic demand of an
exercise bout until steady state aerobic energy systems can meet the energy demand.
A. Steady state
B. EPOC
C. Oxygen deficit
D. Maximal oxygen consumption - CORRECT ANSWER✅✅C
During low-moderate intensity exercise, skeletal muscle ATP levels may decrease significantly.
True or false - CORRECT ANSWER✅✅False; only under extreme exercise conditions
What might limit an individual's ability to maintain steady state exercise?
A. fluid loss
B. electrolyte depletion
C. inadequate liver and muscle glycogen
D. all of the above - CORRECT ANSWER✅✅D
High intensity, short duration (<10s) exercise requires energy from which metabolic pathway(s)?
A. intramuscular ATP
B. PCr-ATP system
C. Aerobic glycolysis
D. A and B - CORRECT ANSWER✅✅D
, For a healthy, aerobically trained person, blood lactate begins to accumulate at what exercise intensity?
A. 90% maximal capacity
B. 45% maximal capacity
C. 55% maximal capacity
D. 75% maximal capacity - CORRECT ANSWER✅✅D
Which of the following does not affect EPOC?
A. Ventilation volumes in recovery
B. Blood type
C. re-synthesizing lactate to glycogen
D. Restoring oxygen dissolved in bodily fluids - CORRECT ANSWER✅✅B
The energy to phosphorylate ADP during intense, short duration (30s-60s) exercise comes mainly from
stored muscle glycogen breakdown via what process?
A. Anaerobic glycolysis
B. Oxidative phosphorylation
C. ATP-PCr
D. Aerobic glycolysis - CORRECT ANSWER✅✅A
How many energy pathways can be active at one time?
A. only one pathway can be actively producing energy at a given moment
B. two pathways can be actively producing energy simultaneously if they are related i.e. anaerobic and
aerobic metabolism of carbohydrate
C. all the aerobic pathways or all the anaerobic pathways, but never a combination of aerobic and
anaerobic pathways at the same time
D. any combination of all the pathways, determined by metabolic demand - CORRECT ANSWER✅✅D
What term refers to the minimum level of energy to sustain vital functions:
A. Thermic Effect of Food
What glycolytic enzyme(s) regulate anaerobic glycolysis?
A. oxygen
B. hexokinase
C. enolase
D. phosphofructokinase - CORRECT ANSWER✅✅B, D
_____represents the period of time when anaerobic energy systems meet the metabolic demand of an
exercise bout until steady state aerobic energy systems can meet the energy demand.
A. Steady state
B. EPOC
C. Oxygen deficit
D. Maximal oxygen consumption - CORRECT ANSWER✅✅C
During low-moderate intensity exercise, skeletal muscle ATP levels may decrease significantly.
True or false - CORRECT ANSWER✅✅False; only under extreme exercise conditions
What might limit an individual's ability to maintain steady state exercise?
A. fluid loss
B. electrolyte depletion
C. inadequate liver and muscle glycogen
D. all of the above - CORRECT ANSWER✅✅D
High intensity, short duration (<10s) exercise requires energy from which metabolic pathway(s)?
A. intramuscular ATP
B. PCr-ATP system
C. Aerobic glycolysis
D. A and B - CORRECT ANSWER✅✅D
, For a healthy, aerobically trained person, blood lactate begins to accumulate at what exercise intensity?
A. 90% maximal capacity
B. 45% maximal capacity
C. 55% maximal capacity
D. 75% maximal capacity - CORRECT ANSWER✅✅D
Which of the following does not affect EPOC?
A. Ventilation volumes in recovery
B. Blood type
C. re-synthesizing lactate to glycogen
D. Restoring oxygen dissolved in bodily fluids - CORRECT ANSWER✅✅B
The energy to phosphorylate ADP during intense, short duration (30s-60s) exercise comes mainly from
stored muscle glycogen breakdown via what process?
A. Anaerobic glycolysis
B. Oxidative phosphorylation
C. ATP-PCr
D. Aerobic glycolysis - CORRECT ANSWER✅✅A
How many energy pathways can be active at one time?
A. only one pathway can be actively producing energy at a given moment
B. two pathways can be actively producing energy simultaneously if they are related i.e. anaerobic and
aerobic metabolism of carbohydrate
C. all the aerobic pathways or all the anaerobic pathways, but never a combination of aerobic and
anaerobic pathways at the same time
D. any combination of all the pathways, determined by metabolic demand - CORRECT ANSWER✅✅D
What term refers to the minimum level of energy to sustain vital functions:
A. Thermic Effect of Food
