Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Most
of the body’s energy needs should be supplied by dietary a. | carbohydrates. | c. | vitamins. | b. | fats. | d. | proteins. | | | | |
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2.
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The
wavelike contractions of muscle that move food through the digestive system are
called a. | peristalsis. | c. | mechanical
digestion. | b. | voluntary contractions. | d. | involuntary digestion. | | | | |
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3.
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The
pharynx is a. | located in the
colon. | c. | also called the
voice box. | b. | located in the back of the
throat. | d. | None of the
above | | | | |
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4.
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Fat
molecules are broken down into fatty acids by a. | emulsifiers. | c. | sphincters. | b. | amylases. | d. | lipases. | | | | |
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5.
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Urine, when compared with the initial filtrate, contains a. | more
glucose. | b. | less water, fewer minerals, and more
urea. | c. | decomposed red blood cells. | d. | concentrated
amino acids. | | |
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