Question

select the correct answer.
why are certain amino acids called essential amino acids?
a. because they are available in abundance
b. because they are not manufactured by the body
c. because they can form bonds with any molecule
d. because they are the most stable among all the amino acids
e. because they are needed for the formation of all biomolecules
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Explanation:

Essential amino acids are those that the body cannot manufacture on its own. They must be obtained from the diet.

Answer:

B. because they are not manufactured by the body