Antibiotics 101

Inhibits microbial cell wall synthesis

Inhibits microbial RNA synthesis

Inhibits microbial protein synthesis (correct)

Inhibits microbial DNA synthesis

Active against both gram-positive and gram-negative organisms (correct)

Not active against any organisms

Active against gram-positive organisms only

Active against gram-negative organisms only

Decreased permeability of the microbial cell membrane to the drug

Increased efflux of the drug from the microbial cell

All of the above

Inactivation of the drug by microbial enzymes (correct)