The main energy source for the lactic acid system during exercise is ________.
A. phosphocreatine
B. triglycerides
C. carbohydrates
D. protein
Answer: C
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Aerobic capacity is the greatest in a person with:
a. a greater proportion of lean body mass to fat. b. a greater proportion of fat to lean body mass. c. a greater proportion of essential to storage depot fat. d. a greater proportion of storage depot to essential fat.
What are the functions of magnesium in the body, and why are so many Americans deficient in magnesium?
When a person is consuming alcohol at a rate that results in increases in blood alcohol content, it is likely that his or her
A. speech and language skills will increase. B. vision will become clearer and then will become impaired. C. level of disorientation and confusion will increase. D. emotional responses will diminish.
Amino acids that cannot be manufactured by the body are characterized as
A) essential. B) transaminated. C) transcribed. D) nonessential.