Which Statement About Amino Acids Is True

Multiple Choice

Which statement about amino acids is true?

A) Animals are unable to make amino acids.
B) Essential amino acids are consistent across species.
C) Essential amino acids are called "essential" because they are utilized more than other amino acids for building proteins.
D) Animals synthesize acetyl groups, which can then be added to amino acids.
E) Lack of essential amino acids compromises enzymatic functions.