Penicillin inhibits bacterial multiplication because

Options

A. checks RNA synthesis
B. checks DNA synthesis
C. destroys chromatin
D. inhibits cell wall formation

Answer

**Step-by-Step Solution:**

1. **Understanding Penicillin**: Penicillin is an antibiotic that is widely used to treat bacterial infections. It is important to know its mechanism of action to understand how it inhibits bacterial multiplication.

2. **Identifying the Mechanism**: The primary function of penicillin is to interfere with the processes that bacteria use to multiply. This involves targeting specific components of bacterial cells.

3. **Cell Wall Formation**: Bacteria have a rigid cell wall that provides structure and protection. The cell wall is primarily composed of a substance called peptidoglycan.

4. **Action of Penicillin**: Penicillin inhibits the synthesis of peptidoglycan, which is essential for the formation of the bacterial cell wall. Without a proper cell wall, bacteria cannot maintain their shape and integrity, leading to cell lysis (bursting) and ultimately preventing their multiplication.

5. **Conclusion**: Therefore, the correct answer to the question "Penicillin inhibits bacterial multiplication because" is that it "inhibits cell wall formation."

**Final Answer**: Penicillin inhibits bacterial multiplication because it inhibits cell wall formation.

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