Which of the following statements about protein digestion is NOT true?
a. Stomach acid unfolds a protein.
b. Brush border proteases digest short peptides into tripeptides, dipeptides, and individual amino acids.
c. Individual amino acids leave the mucosal cells through transport proteins and enter the blood.
d. Pepsin, produced by cells lining the small intestine, breaks down the denatured protein into large polypeptide fragments.
Answer: d. Pepsin, produced by cells lining the small intestine, breaks down the denatured protein into large polypeptide fragments.
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As a result of an injury, proteins can accumulate in tissue spaces. This is referred to as _____
a. polyps b. fibroids c. cyst d. exudate
The problem seeker is: a. reactive
b. proactive. c. rational. d. ambiguous.
Which of the following hormones that is secreted from the adrenal medulla regulates arterial blood pressure and prepares the body for "fight or flight" responses?
A. oxytocin B. serotonin C. cortisol D. epinephrine E. norepinephrine
The component that makes the most variable contribution to weight gain during pregnancy is:
a. fat. b. water. c. protein. d. carbohydrate.