Explain the terms holozyme and isozyme.

Explanation

### Step-by-Step Solution

**Step 1: Define Holozyme**
- A holozyme is an enzymatically active form of an enzyme that consists of two components: an apoenzyme and a cofactor. The apoenzyme is the protein part of the enzyme, while the cofactor can be a metal ion or a coenzyme (which is often a non-protein organic molecule). Together, they form a functional enzyme that can catalyze biochemical reactions.

**Step 2: Explain the Components of Holozyme**
- The two main components of a holozyme are:
- **Apoenzyme**: This is the protein portion of the enzyme that is inactive on its own. It requires the cofactor to become active.
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