Beta-carotene is a __________.
a. cancer-causing agent
b. mineral
c. neurotransmitter
d. carotenoid
Answer: d. carotenoid
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What characteristic of the proteins that form red blood cells allows them to change shape and flow freely through the blood?
A. spherical shape B. globular shape C. long, narrow shape D. lack of quaternary structure
Which nonmetal nutrient deficiency is associated with Keshan disease, characterized by cardiomyopathy??
A) ?iodine B) ?zinc C) ?selenium D) ?molybdenum
A certain amount of fiber in foods contributes to the health of the digestive tract, but eating too much fiber leads to nutrient losses. The characteristic of diet planning illustrated by this statement is called: a. adequacy
b. calorie control. c. balance. d. moderation. e. variety
Foods and beverages ingested immediately after an endurance event should contain:
a. protein. b. fat. c. carbohydrate. d. fiber.