The part of a bacterial cell that makes it gram positive or gram negative is the:

Question

Quizplus · Accepted Answer

The difference between gram-positive and gram-negative bacteria lies in their cell wall structure. Gram-positive bacteria have a thick peptidoglycan layer that retains the crystal violet stain used in the gram staining process, making them appear purple under the microscope. In contrast, gram-negative bacteria have a thin peptidoglycan layer surrounded by an outer membrane which can interfere with the uptake of the stain, resulting in a pink or red appearance. Therefore, the cell wall is the part of the bacterial cell that makes it gram positive or gram negative, making choice A the best choice.

The Part of a Bacterial Cell That Makes It Gram