A protein's primary structure is
A) its shape when it is first made.
B) its shape when it is not bound to a substrate.
C) its three-dimensional shape in which it is biologically active.
D) the shape of the protein without any cofactors.
E) its amino acid sequence.

Question

Quizplus · Accepted Answer

The primary structure of a protein refers to its amino acid sequence, which is the linear chain of amino acids connected by peptide bonds. This sequence determines the protein's higher-level structures and functions.

A Protein's Primary Structure Is