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Consider the following two statements. Statement I: Penicillin is a bacteriostatic type of antibiotic. Statement II: Penicillin contains a beta-lactam ring fused to a thiazolidine ring as its general core structure. Choose the correct option.

1. Statement I is incorrect but statement II is true
2. Both statement I and statement II are true
3. Both statement I and statement II are false
4. Statement I is correct but statement II is false

Correct answer: Statement I is incorrect but statement II is true

Solution

Penicillin is bactericidal (it kills bacteria by disrupting cell-wall synthesis), not bacteriostatic, so Statement I is false; its general structure does contain the beta-lactam ring, so Statement II is true.

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