The process of protein turnover includes:
a. excreting old amino acids that are left from cell breakdown
b. synthesizing intestinal cells, which live for 3 to 4 months.
c. eating food sources of amino acids every day to grow new cells and replace worn-out ones.
d. preserving all old amino acids in the body to be re-circulated.
e. circulating proteins in the bloodstream to replenish peptide chains.
c
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An individual who eats food contaminated with bacteria may be protected from the ill effects of the bacteria because of the presence of
A) enzymes in the lining of the small intestine B) hormones and enzymes controlling reactions in the small intestine C) antibacterial agents consumed with the food D) phagocytes and lymphocytes
Which food group is typically consumed in amounts greater than recommended by the USDA?
a. dairy b. fruits c. vegetables d. protein foods e. whole grains
A majority of contingent farm workers
A) have paid sick leave. B) are younger than 12 years of age. C) have healthcare insurance. D) are not entitled to breaks for rest or meals mandated by law for other U.S. workers.
Regular physical activity helps to _____ muscle mass and _____ body fat
a. decrease, increase b. decrease, maintain c. increase, decrease d. maintain, increase