Question

The antibiotic penicillin is effective against many bacteria state reason

Answer 1

Antibiotics prevent diseases by blocking the biochemical pathways of living organisms. Penicillin controls the growth of bacteria by preventing them from making their own cell wall.

Answer 2

Here is the answer of your question:

Antibiotics penicillin is effective against many bacteria because Antibiotics prevent diseases by blocking the biochemical pathways of living organisms.
Bacteria make their own biochemical cell wall.we know that human cells donot have cell wall penicillin do not affect us in any way.so penicillin block the biochemical path ways of bacteria.