Proteins

a. do not have a specialized storage form for energy.

b. repel fluids, thereby reducing our risk for edema.

c. help destroy antibodies, toxic by-products of our

immune response to infection.

d. None of the above is true.

Q36: In the small intestine,

a. pepsinogen begins the breakdown of proteins into

polypeptides.

b. polypeptides are absorbed into the bloodstream,

where they travel to the liver for breakdown into

single amino acids.

c. enzymes break polypeptides into single amino acids.

d. amino acids are broken down and urea, a byproduct

of amine digestion, moves to the large

intestine for excretion in feces.