How does Penicillin kill bacteria?A Penicillin makes holes in the cell membrane B Penicillin interferes with the bacterial metabolism C Penicillin inhibits protein synthesis D Penicillin prevents growth of bacterial cell wall

Penicillin works by preventing the growth of bacterial cell walls. This is the correct answer, so the answer is D.

Here's a step-by-step explanation:

1. Penicillin is a type of antibiotic, which are drugs that either kill bacteria or prevent them from multiplying.

2. Bacteria are surrounded by a protective structure called a cell wall. This cell wall maintains the shape of the bacteria and protects it from changes in the environment.

3. The cell wall is constantly being broken down and rebuilt by the bacteria, a process that is necessary for their growth and multiplication.

4. Penicillin works by binding to enzymes that are involved in the final steps of constructing the bacterial cell wall.

5. This prevents the bacteria from properly building their cell walls.

6. As a result, the bacteria become weak and can easily be destroyed by the body's immune system, or they may even burst due to the inability to maintain proper internal pressure without the cell wall.

So, penicillin doesn't make holes in the cell membrane (A), doesn't interfere with the bacterial metabolism (B), and doesn't inhibit protein synthesis (C). It prevents the growth of the bacterial cell wall (D).