Question

Gram negative bacteria retain stain.

• A. True
• B. False

Answer 1

The correct option is B False

Bacteria:

1. Based upon gram staining bacteria are of two types, Gram-positive and Gram-negative bacteria.
2. Gram-negative bacteria cannot retain crystal violet stain during the gram staining procedure.
3. Gram-negative bacteria have a thin layer of peptidoglycan in the cell membrane of bacteria. So that the bacteria cannot retain stain.
4. Their outer membrane contains lipopolysaccharide.
5. For e.g., E. coli, Salmonella, etc.

Final Answer: The given statement is false.