Multiple Choice
Microbiologists use the Gram stain to aid in identification of bacteria.What is the major difference between Gram-positive and Gram-negative bacteria?
A) structure of the lipids in the plasma membrane
B) presence or absence of muramic acid in the cell wall
C) presence or absence of peptidoglycan in the cell wall
D) presence or absence of outer membrane
Correct Answer:

Verified
Correct Answer:
Verified
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