The main constituent of the cell wall of bacterial cell is polymer called

Correct option is B

(b) Peptidoglycan

The main component of the bacterial cell wall is peptidoglycan, which provides structural support and protects the bacterial cell from environmental stress. It is a polymer made of sugars and amino acids.

• Peptidoglycan is unique to bacteria and is not found in plant or animal cells.
• Chitin (option d) is found in the exoskeletons of arthropods and fungi, while Xylan (option a) is found in plant cell walls.

Information Booster:

1. Peptidoglycan is a rigid layer that helps bacteria maintain their shape.
2. Gram-positive bacteria have a thick peptidoglycan layer, while Gram-negative bacteria have a thinner layer with an outer membrane.
3. Flocculose and Xylan are unrelated to bacterial cell walls.

Additional Information:

• Peptidoglycan is a target for antibiotics like penicillin, which disrupts its synthesis.