Respuesta :
The biological function of penicillin primarily stems from the reactivity of the cyclic amide functional group also known as the β-lactam ring from the penicillin molecular structure. Attached is an image of the penicillin molecule and in red is the ring. This ring is the reactive portion because it has the ability to binding to the enzyme DD-transpeptidase, blocking it. This enzyme is important because it is involved in the synthesis of the bacterial cell wall.

The biological function of penicillin stems primarily from the reactivity of β-lactam ring (cyclic amide) functional group.
β-Lactam Ring:
- It is the most important part of the penicillin structure.
- It is a cyclic amide functional group.
- This ring bind with enzyme DD-transpeptidase and block its function.
- The enzyme DD-transpeptidase is involed in bacterial cell wall synthesis.
Hence, we can conclude that the biological function of penicillin stems primarily from the reactivity of β-lactam ring (cyclic amide) functional group.
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