Respuesta :

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X

X
X
X
S
D
.
X
X
X
X
Zzdjhejememd
E
D
D
D
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The basic chemical structure of all penicillins consists of a beta-lactam ring, a thiazolidine ring, and a side chain (6-aminopenicillanic acid). The antibacterial activity of the penicillins lies within the beta-lactam ring.