Which statement about gram-negative bacteria is correct?
A)Penicillins are the best antibiotics to use against them.
B)They often possess an outer membrane containing toxic lipopolysaccharides.
C)Their chromosomes are composed of DNA tightly wrapped around large amounts of histone proteins.
D)Their cell walls are primarily composed of peptidoglycan.

Question

Quizplus · Accepted Answer

Gram-negative bacteria have an outer membrane containing toxic lipopolysaccharides, which can cause severe immune responses in hosts. Penicillins are not always effective against gram-negative bacteria. Their chromosomes are not tightly wrapped around histone proteins, and their cell walls are primarily composed of a thin layer of peptidoglycan surrounded by an outer membrane.

Which Statement About Gram-Negative Bacteria Is Correct