What is the function of enzymes ?

Options

A. Structure and support
B. Nutritional reserves
C. Biochemical catalysts
D. Communication between calls

Answer

### Step-by-Step Solution:

1. **Definition of Enzymes**: Enzymes are biological molecules, primarily proteins, that act as catalysts in biochemical reactions. They speed up the rate of reactions without being consumed in the process.

2. **Types of Enzymes**: Enzymes can be categorized based on their source:
- **Endocrine Enzymes**: These are secreted by the endocrine system and primarily function as hormones.
- **Exocrine Enzymes**: These are secreted by the exocrine system and include digestive enzymes.

3. **Function of Enzymes**: The primary function of enzymes is to act as biocatalysts. This means they lower the activation energy required for a reaction to occur, thus increasing the rate of the reaction.

4. **Example of Enzyme Action**: Consider the enzyme invertase, which catalyzes the hydrolysis of sucrose into glucose and fructose. This reaction exemplifies how enzymes facilitate the conversion of substrates into products.

5. **Importance of Enzymes**: Enzymes are crucial for various biological processes, including digestion, metabolism, and DNA replication. They ensure that these processes occur efficiently and at the right speed.