Protein is needed by the body because it provides
a. energy.
b. peptides.
c. fatty acids.
d. amino acids.
D
The body needs protein because it provides amino acids, needed to make all the proteins in the body. Excess protein can be used to provide energy, but the body does not need it for this pur-pose because it can obtain energy from carbohydrate and fat. Protein is made up of peptides, strings of amino acids joined together, but these are only needed by the body because of the amino acids they supply. Protein does not supply fatty acids.
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Fill in the blank(s) with correct word