Grapefruit juice can increase the physiological effects of some drugs by _____
a. affecting kidney excretion
b. decreasing blood concentration of some drugs
c. inactivating certain drugs
d. altering the action of certain drugs
e. inactivating enzymes that metabolize drugs
e
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Which of the following beverages is the least hydrating to the body?
For the body to maintain a moderate level of steady exercise:
a. ample stores of fat must be available. b. sufficient oxygen must be available to the cells. c. the body must metabolize amino acids. d. the body must use anaerobic metabolism.
Overconsumption of fat-soluble vitamins is more likely to be toxic than overconsumption of water-soluble vitamins
Indicate whether the statement is true or false
Digestion of macronutrients begins in the mouth with enzyme action on:
a. starches by carbohydrases. b. proteins by proteases. c. fats by lipases. d. a and b e. a and c