Question

A prosthetic group of a protein is a non-protein structure that is:

A. a ligand of the protein.
B. a part of the secondary structure of the protein.
C. permanently associated with the protein.
D. a substrate of the protein.
E. transiently bound to the protein.

Answer 1

A prosthetic group of a protein is a non-protein structure that is permanently associated with the protein, facilitating its function.

Step-by-step explanation:

A prosthetic group is a non-polypeptide unit tightly bound to a protein, often a biological macromolecule like an enzyme. It is an essential part of the protein's structure and function, contributing to the overall activity and specificity of the protein. Prosthetic groups are different from cofactors or coenzymes in that they are usually permanently attached to the protein.

A prosthetic group of a protein is a non-protein structure that is permanently associated with the protein. It serves to facilitate the function of the protein by providing additional chemical capabilities. Examples of prosthetic groups include heme in hemoglobin and metal ions in metalloproteins.