Question

What is the last amino acid of the primary structure known as?

(a) N-terminal amino acid

(b) L-terminal amino acid

(c) S-terminal amino acid

(d) C-terminal amino acid

The question was asked in a job interview.

I want to ask this question from Biomolecules topic in chapter Biomolecules of Biology – Class 11

Answer 1

Right choice is (d) C-terminal amino acid

Best explanation: The right end of the primary or linear structure of proteins is represented by the last amino acid. The right end of the first amino acid contains the carboxyl group and is hence called the C-terminal.