Answer
The cell walls of most bacterium contain a substance called peptidoglycan. Penicillium escapes the effects of Penicillium because penicillin blocks a production step during the production of peptidoglycan. As Penicillium is a eukaryotic fungus, it does not produce nor require peptidoglycan, which allows it to selectively attack certain bacteria while sparing other bacteria.
Work Step by Step
The cell walls of most bacterium contain a substance called peptidoglycan. Penicillium escapes the effects of Penicillium because penicillin blocks a production step during the production of peptidoglycan. As Penicillium is a eukaryotic fungus, it does not produce nor require peptidoglycan, which allows it to selectively attack certain bacteria while sparing other bacteria.
