Question

How does penicillin secreted by Penicillium inhibit Staphylococcus bacteria?

Options

• By blocking bacterial protein synthesis at the ribosome

• By dissolving the bacterial plasma membrane

• By disrupting bacterial DNA replication

• By inhibiting bacterial cell wall synthesis

Answer 1

Penicillium secretes the antibiotic penicillin, which inhibits bacterial cell wall synthesis in Staphylococcus. This suppression of cell wall formation inhibits the growth and survival of the target bacteria, exemplifying antibiosis.