Question

multiple choice question the active part of the penicillin structure is the ______ ring.
options:

• benzene
• beta-lactam
• thiazolidine
• phenol

Explanation:

Penicillin's active part is the beta - lactam ring, which is responsible for its antibacterial activity by inhibiting bacterial cell wall synthesis. Benzene is not the active part here, thiazolidine is not the key active ring, and phenol is unrelated to penicillin's active structure.

Answer:

B. beta - lactam