Requirements for _____ increase during pregnancy due to increases in hemoglobin production
a. vitamin A
b. calcium
c. vitamin D
d. iron
e. iodine
d
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Which of the following statements is true of chromium?
It plays a key role in the formation of hemoglobin and collagen. It increases the resistance of bones and teeth against demineralization. It limits the formation of free radicals and prevents oxidative damage. It improves the cellular uptake of glucose by enhancing insulin activity. It acts as a buffer to maintain the acid-base balance of cellular fluids.
Which statement about non-digestible carbohydrates is FALSE?
a. Dietary fiber lingers in the small intestine. b. They attract water, which softens stool for passage without straining. c. Their small fat molecules contribute some energy. d. They are fermented by bacteria in the GI tract. e. Bacteria adds water, gas, and short-chain fatty acids.
The term "hard-boiled eggs" is incorrect because the contents of the egg actually coagulate long before the boiling point is reached
Indicate whether the statement is true or false
In the lungs, oxygen and carbon dioxide are exchanged at the:
a. bronchi b. alveolar-capillary membrane c. surfactant d. glomerulus