What are bloactive molecules. Name item.

Explanation

**Step-by-Step Solution:**

1. **Definition of Bioactive Molecules:**
Bioactive molecules are organic compounds that are produced on a commercial scale by microorganisms. These compounds have beneficial effects on human health and welfare.

2. **Role of Microorganisms:**
Microbes, including bacteria and fungi, play a crucial role in the production of these bioactive molecules. They are the biological factories that synthesize these compounds.

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