Nonessential amino acids can be made by the liver using
a. glucose and urea.
b. other amino acids.
c. fatty acids and glycerol.
d. enzymes and hormones.
B
The body can make nonessential amino acids from other amino acids. Once the amino group has been removed from an amino acid and has been formed into urea, the body cannot turn it back into an amino acid. Fatty acids and glycerol cannot be used to make amino acids. Enzymes and hormones may help control the manufacture of nonessential amino acids but are not themselves used to make them.
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