Question

Gram' staining is a common technique used to differentiate two large groups of bacteria based on their different

• A. Cell membrane
• B. Extracellular matrix
• C. Cell wall
• D. All of the above

Answer 1

The correct option is C Cell wall

Gram staining is a common technique used to differentiate two large groups of bacteria based on their different cell wall constituents. The Gram stain procedure distinguishes between Gram positive and Gram negative groups by colouring these cells red or violet.