Question

Explain how antibiotics are able to target the bacteria cells but not the healthy cells within your body.

Answer 1

There are different ways antibiotics can target bacterial cells.

For example let's consider the case of most common antibiotic i.e Penicillin

The target bacteria of penicillin have a β-lactam ring. It prevents the cross linking of NAM and NAG in peptidoglycan. Peptidoglycan is a major part of the cell wall of gram-positive bacteria. So when NAM (N-acetylglucosamine) and NAG (N-acetylmuramic acid) cannot be cross-linked, the cell wall cannot be completed.

The reason it does not affect human cells is because animal cells do not have a peptidoglycan layer.

Answer 2

alright thank you

Answer 3

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