what-is-the-main-difference-between-a-gram-positive-bacteria-and-a-gram-negative

Question

What is the main difference between a gram-positive bacteria and a gram-negative bacteria:

Accepted Answer

The peptidoglycan cell wall of gram-positive bacteria is thicker

Answer

A gram-positive bacteria's cell wall is surrounded by an outer lipid bilayer membrane

Answer

Both A and B

Answer

None of the above