Penicillin works most effectively against gram-positive bacteria because:
A) penicillin affects cell membranes.
B) they have a thick peptidoglycan cell wall, and penicillin affects the synthesis of peptidoglycans.
C) they have special protein channels that allow penicillin to enter the cell and halt the cell cycle.
D) they are smaller than gram-negative bacteria and, thus, easily take up penicillin by diffusion.
E) they contain prophages that negatively interact with penicillin.

Question

Quizplus · Accepted Answer

Penicillin targets the synthesis of peptidoglycan, which is abundant in the thick cell walls of gram-positive bacteria, making it more effective against them.

Penicillin Works Most Effectively Against Gram-Positive Bacteria Because