What is a prothetic group ?

Explanation

### Step-by-Step Text Solution

1. **Definition of Prosthetic Group**: A prosthetic group is defined as a non-protein portion that is tightly and permanently attached to a protein.

2. **Source of Prosthetic Groups**: Prosthetic groups are typically derived from the hydrolysis of conjugated proteins. Conjugated proteins are proteins that are associated with non-protein components.

3. **Function of Prosthetic Groups**: The primary function of a prosthetic group is to assist in controlling the biological functions of proteins. They can play critical roles in the activity of enzymes and other proteins by facilitating specific biochemical reactions.

...