Write the function of a Bioreactor.

Explanation

### Step-by-Step Solution:

1. **Definition of a Bioreactor**: A bioreactor is a large tank or vessel used for the biological conversion of raw materials into specific products.

2. **Purpose of a Bioreactor**: The primary function of a bioreactor is to provide an environment where biological reactions can occur efficiently. This includes the growth of microorganisms, cells, or enzymes.

3. **Biological Conversion**: In a bioreactor, raw materials are biologically converted into desired products. These products can include enzymes, pharmaceuticals, or other biochemical substances.

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