Which of the following statements best describes a prosthetic group?
A) They are nonpeptide molecules or ions essential to a protein's structure.
B) They are short peptide chains attached to a larger protein.
C) They are nonfunctional components of a protein.
D) They are the active part of a protein.
E) They are the part of the protein that provides structure.

Question

Quizplus · Accepted Answer

A prosthetic group is a nonpeptide molecule or ion that is essential to the structure and function of a protein. It is typically covalently attached to the protein and plays a key role in the protein's overall folding and stability, as well as in its catalytic activity or other functional properties. Examples of prosthetic groups include heme in hemoglobin, biotin in enzymes involved in carboxylation reactions, and the iron-sulfur clusters found in many electron transport proteins.

Which of the Following Statements Best Describes a Prosthetic Group