In Transamination, the Amino Group of an Amino Acid Is

Question

In transamination, the amino group of an amino acid is
A) converted to ammonia.
B) converted to urea.
C) transferred to a keto acid.
D) absorbed by water.
E) transferred to acetyl-CoA.

Accepted Answer

In transamination, the amino group of an amino acid is transferred to a keto acid to form a new amino acid and a new keto acid. This is an important step in amino acid metabolism and allows for the synthesis and breakdown of amino acids. Option A is incorrect because the amino group is not converted to ammonia in transamination, but rather transferred to a different molecule. Option B is incorrect because urea synthesis occurs in the liver as a way to eliminate excess nitrogen, but not directly in transamination. Options D and E are incorrect because water and acetyl-CoA are not involved in transamination reactions.