When the diet contains an adequate amount of protein, the body can synthesize niacin from the amino acid ____
a. lysine
b. tryptophan
c. phenylalanine
d. valine
e. tyrosine
b
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How many kcalories per day are required for the lactating mother to produce breastmilk?
a. 250 b. 350 c. 500 d. 750
Which of the following substances is not an antioxidant?
A) vitamin C B) biotin C) vitamin E D) beta-carotene
Which best describes bacterial overgrowth syndrome?
a. The patient is exposed to contaminated instruments during surgery b. Cross-contamination of bacteria occurs between the colon and the small intestine c. The colon is perforated and bacteria enter the peritoneum d. The surgical incision becomes infected with overgrowth of bacteria e. The patient passes excess bacteria from the stomach into the small intestine
As oxygen consumption increases during physical activity, the exercise intensity ________.
A. stays the same B. decreases C. increases