Which of the following statements about gram- negative cell walls is FALSE?
A) Their Gram reaction is due to the outer membrane.
B) They are sensitive to penicillin.
C) They are toxic to humans.
D) They have an extra outer layer composed of lipoproteins, lipopolysaccharides, and phospholipids.
E) They protect the cell in a hypotonic environment.

Question

Quizplus · Accepted Answer

Gram-negative cell walls are not sensitive to penicillin due to the presence of an extra outer layer called the outer membrane, which prevents penicillin from reaching the peptidoglycan layer where it can inhibit cell wall synthesis.

Which of the Following Statements About Gram- Negative Cell Walls