NEET BIOLOGY

Detailed explanation-1: -They have a cell wall mainly composed of cellulose and hemicellulose.

Detailed explanation-2: -Organisms that possess cell wall in their cellular structure include-bacteria, fungi and plants. Bacterial cell walls are made up of peptidoglycan, plant cell walls are made up of cellulose and the fungal cell walls are made up of chitin.

Detailed explanation-3: -Thus, the answer is option C: Plant cells contain a rigid cell wall made up of cellulose.

Detailed explanation-4: -Unlike the animal extracellular matrix, which is rich in protein and other nitrogen-containing polymers, the plant cell wall is made almost entirely of polymers that contain no nitrogen, including cellulose and lignin.

Detailed explanation-5: -Cellulose is a central component in plant cell walls. In the primary cell wall (deposited in cells that are still expanding), it is a vital component of the load-bearing network and, because of its physical properties, is important in determining the orientation of cell expansion.