EXPH 386 Exam 2 Study Guide 2026: High-Yield Concepts & Practice Questions

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EXPH 386 Exam 2 (NEW UPDATED VERSION) LATEST ACTUAL EXAM
QUESTIONS AND CORRECT ANSWERS (VERIFIED QUESTIONS AND ANSWERS)-
GUARANTEED PASS A+ UPDATED 2026




What are the contributions from secondary energy metabolism pathways
dependent on? - CORRECT ANSWER Intensity and duration of the
exercise. Also the fitness level of the individual


QUESTION :About how much ATP and PCr is stored within the muscle? -
CORRECT ANSWER ~ 3-8 mmol of ATP per kg of muscle. PCr is 4-5
times higher than ATP.


QUESTION :Aerobic Metabolism pathways - CORRECT ANSWER
Requires oxygen. Krebs, Beta-oxidation, and Electron Transport Chain


QUESTION :Where does the energy to replace the high-energy phosphates
during strenuous exercise come from? - CORRECT ANSWER Glucose
and stored glycogen from the anaerobic pathway of glycolysis


QUESTION :What does the anaerobic process of glycolysis primarily result in? -
CORRECT ANSWER Formation of lactic acid


QUESTION :What is the fastest way to generate energy after using ATP and CP? -
CORRECT ANSWER glycolysis




2026 2027 GRADED A+

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QUESTION :Why is glycolysis a disadvantage in generating energy after using
ATP and CP - CORRECT ANSWER using glycolysis increases the
lactate/pyruvate ratio which means more lactic acid is produced. Glycolysis is
also very inefficient resulting in only 2 ATP


QUESTION :Does lactic acid appear in the blood during all types of exercise? -
CORRECT ANSWER No, only in higher amounts during higher intensity
exercises.


QUESTION :When is the most rapidly accumulated and highest lactic acid levels
reached? - CORRECT ANSWER During maximal exercise that can be
sustained for 60-180 seconds


QUESTION :High intensity but short duration workouts require what -
CORRECT ANSWER immediate energy which comes from ATP and PCr


QUESTION :Lowering the intensity of a workout to be able to sustain a longer
duration results in what - CORRECT ANSWER decrease in lactate
accumulation and overall blood lactic levels


QUESTION :What are other names for the threshold for lactic build up? -
CORRECT ANSWER anaerobic threshold or blood lactate threshold


QUESTION :Factors that relate to lactate threshold - CORRECT ANSWER
low tissue oxygen
reliance on glycolysis
activation of fast twitch muscle fibers


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reduced lactate removal


QUESTION :for a trained individual, the threshold for lactate build up occurs at
________ ___________ _____ _________ ____________ _____________
__________ - CORRECT ANSWER a higher percentage of the athletes
aerobic capacity


QUESTION :what are some possibilities for the threshold for lactate build up
occurring at a higher percentage of the athletes aerobic capacity due to -
CORRECT ANSWER genetic endowment
adaptions that cause less lactic acid production
greater rate of removal


QUESTION :Adaptions and increased removal of lactate may be caused by? -
CORRECT ANSWER increased capillary density
increased number and size of the mitochondria
increase in aerobic enzymes and transfer agents


QUESTION :Trained athletes can often perform at what percentage of their
maximal capacity for aerobic metabolism before significant increases in blood
lactate occur? - CORRECT ANSWER 80-90%


QUESTION :After a well-trained athlete performs maximal short-term exercise,
where are their blood lactate levels compared to an untrained subject -
CORRECT ANSWER 20-30% higher




2026 2027 GRADED A+