The non-protein part of an enzyme, necessary for enzyme activity is called

Explanation

To answer the question, "The non-protein part of an enzyme, necessary for enzyme activity is called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Enzymes**: Enzymes are biological catalysts that speed up chemical reactions in the body without being consumed in the process. They are primarily made of proteins.

2. **Identifying Components of Enzymes**: Enzymes can have additional components that assist in their function. These components can be either protein or non-protein in nature.

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