Question

question 29
essential amino acids:
a must be provided by the diet.
b can be synthesized by the body.
c are the only ones needed by the body.
d are the only ones that contain nitrogen.

Explanation:

Essential amino acids are those that the body cannot synthesize on its own. Therefore, they must be obtained from the diet. Non - essential amino acids can be synthesized by the body. All amino acids (both essential and non - essential) contain nitrogen. And the body needs both essential and non - essential amino acids for various functions such as protein synthesis.

Answer:

A. must be provided by the diet.