Final answer:
A prosthetic group is a non-protein molecule that is covalently bound to a protein and is necessary for its biological activity. An example of a prosthetic group is heme, which is attached to hemoglobin.
Step-by-step explanation:
A prosthetic group is a non-protein molecule that is covalently bound to a protein and is necessary for its biological activity. An example of a prosthetic group is heme, which is attached to hemoglobin. Heme contains an iron ion at its center that binds oxygen, allowing hemoglobin to transport oxygen in the bloodstream. Therefore, the correct answer is 5) carboxypeptidase A.
A zinc ion is an example of a prosthetic group which is a component required for the biological activity of enzymes such as carbonic anhydrase.
A prosthetic group refers to a non-protein, often metal, component that is permanently attached to a protein and is required for its biological activity. Examples of prosthetic groups include metals like iron in heme found in hemoglobin or zinc in enzymes like carbonic anhydrase. Therefore, out of the provided options, a zinc ion serves as an example of a prosthetic group because it often forms a vital part of the active site of metalloenzymes, enhancing their catalytic functions. A prosthetic group is a non-protein molecule that is covalently bound to a protein and is necessary for its biological activity. An example of a prosthetic group is heme, which is attached to hemoglobin. Heme contains an iron ion at its center that binds oxygen, allowing hemoglobin to transport oxygen in the bloodstream. Therefore, the correct answer is 5) carboxypeptidase A. A zinc ion is an example of a prosthetic group which is a component required for the biological activity of enzymes such as carbonic anhydrase.