Questions: Question 5 Which of the following are organic molecules that help enzymes work correctly? Holoenzymes Coenzymes Cofactors Apoenzymes

The answer is the second one (B): Coenzymes.

Explanation for each option:

1. Holoenzymes: These are the complete, active forms of enzymes that include both the protein component (apoenzyme) and any necessary cofactors or coenzymes. While they are related to enzyme function, they are not specifically the organic molecules that help enzymes work correctly.

2. Coenzymes: These are organic molecules that bind to enzymes and assist in enzyme activity. They often act as carriers for chemical groups or electrons during the enzymatic reactions. Examples include NADH, FADH2, and coenzyme A.

3. Cofactors: These are non-protein chemical compounds that are required for the biological activity of some enzymes. Cofactors can be either inorganic ions (like metal ions) or organic molecules (coenzymes). However, the term "cofactors" is broader and includes both organic and inorganic molecules.

4. Apoenzymes: These are the protein components of enzymes, without any cofactors or coenzymes. They are inactive on their own and require the binding of a cofactor or coenzyme to become active.

Summary: Coenzymes are the specific organic molecules that help enzymes work correctly by participating in the enzymatic reactions.