Question

multiple choice question

which of the following acts as a carrier to move a chemical group from one substrate molecule to another?

coenzyme
atp
metallic cofactor

Explanation:

Define the role of coenzymes

Coenzymes are organic molecules that bind transiently to enzymes and function specifically as carriers to transfer chemical groups, protons, or electrons from one substrate molecule to another during biochemical reactions.

Evaluate the other options

• ATP is a primary energy currency of the cell, not a general carrier molecule that transfers functional groups between different substrates in enzymatic reactions.
• Metallic cofactors (such as \(Fe^{2+}\), \(Mg^{2+}\), or \(Zn^{2+}\)) typically assist in stabilizing enzyme structure, binding substrates, or participating in electron transfer, but do not act as organic carriers of chemical groups.

Answer:

• Coenzyme (Correct answer)
• ATP
• Metallic cofactor