Antibiotic penicillin is produced from

Options

A. Bacteria
B. Fungus
C. Lichen
D. Algae

Explanation

**Step-by-Step Solution:**

1. **Understanding Antibiotics**: Antibiotics are substances that can kill or inhibit the growth of disease-causing microbes (pathogens). The term "antibiotic" comes from "anti" meaning against and "bio" meaning life.

2. **Identifying the First Antibiotic**: The first antibiotic discovered was penicillin. It is important to note that antibiotics are produced by certain microbes.

3. **Source of Penicillin**: Penicillin is produced from a specific type of fungus. The scientific name of this fungus is *Penicillium notatum*.

4. **Discovery of Penicillin**: The antibiotic penicillin was discovered by the scientist Alexander Fleming. He observed that bacteria (specifically *Staphylococcus*) could not grow around the mold of the fungus, indicating that the fungus was producing a substance that inhibited bacterial growth.

5. **Conclusion**: Therefore, the correct answer to the question "Antibiotic penicillin is produced from" is that it is produced from a fungus.

**Final Answer**: Penicillin is produced from a fungus, specifically *Penicillium notatum*.

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