Penicillins and Cephalosporins ________

Question

Penicillins and cephalosporins ________.
A)block folic acid synthesis
B)attach to the 30S ribosomal subunit and disrupt protein synthesis
C)damage cell membranes
D)block peptidases that cross-link glycan molecules

Accepted Answer

Penicillins and cephalosporins both block the activity of peptidases that cross-link glycan molecules in bacterial cell walls, resulting in weakened cell walls and ultimately bacterial cell death.