An organic non-protein cofactor which is easily suparable from apoenzyme is called

Options

A. Prosthetic group
B. Coenzyme
C. Alloenzyme
D. All the above.

Answer

To solve the question, we need to understand the definitions and differences between the terms provided in the options. Here’s a step-by-step breakdown:

### Step 1: Understand the terms
- **Apoenzyme**: This is the protein part of an enzyme that requires a cofactor to be active.
- **Cofactor**: This is a non-protein chemical compound that is required for the biological activity of a protein, often an enzyme.
- **Coenzyme**: A type of cofactor that is organic and non-protein in nature. Coenzymes are usually loosely bound to the apoenzyme.
- **Prosthetic group**: This is also a type of cofactor but is tightly bound to the apoenzyme.
- **Alloenzyme**: This term refers to different forms of an enzyme that can exist due to variations in the enzyme's structure.

### Step 2: Analyze the options
- **Prosthetic group**: Tightly bound to the enzyme, not easily separable.
- **Coenzyme**: Loosely bound to the enzyme and easily separable.
- **Alloenzyme**: Refers to variations of enzymes, not relevant to the question.
- **All of the above**: This cannot be correct since only one of the options fits the description.

### Step 3: Identify the correct answer
Given that the question asks for an organic non-protein cofactor that is easily separable from the apoenzyme, the correct answer is **coenzyme**.

### Final Answer
The correct answer is **coenzyme**.

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