The antimicrobial activity of penicillin is due to:
A. Thiazolidine
B. Betalactam ring
C. 6-aminopenicillin acid
D. None
Answer:C
The antimicrobial activity of penicillin is due to:
A. Thiazolidine B. Betalactam ring C. 6-aminopenicillin acid D. None