Question

Gram staining is a helpful technique for differentiating between different types of bacteria. What part of the bacterial envelope is exploited by the gram staining process?

Answer 1

Peptidoglycan layer.

Step-by-step explanation:

The thickness of the peptidoglycan protein layer is the main difference between gram negative, and gram positive bacteria. Gram positive bacteria contains thick peptidoglycan layer which retains the gram staining, and making the bacteria purple under the microscope.

Gram negative bacteria contains thin peptidoglycan layer which do not retain the gram staining, and making the bacteria pink under the microscope.