Proteins contribute significantly to energy expenditure during which of the following states?
a. Severe sepsis c. Prolonged starva-tion
b. Hyperthermia d. Long-bone fractures
ANS: C
Under normal conditions, proteins contribute only minor amounts to energy metabolism. Note that the percentage of protein used represents the normal turnover rate for replenishing structural and functional proteins in the body. Proteins might contribute significantly to energy expendi-ture, however, in cases of starvation.
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