NEET BIOLOGY

Detailed explanation-1: -The cell wall is present only in plants and in some fungi, bacteria and algae. It is present outside the cell membrane and is tough, flexible and sometimes rigid in its texture. It is mainly composed of cellulose, long fibres of carbohydrates including hemicellulose, lignin and pectin.

Detailed explanation-2: -The cell wall is a rigid structure that gives support to a cell.-It is the outer most structure of a cell. Plants and algae have cell walls made of cellulose (a complex sugar). Cell walls of plants allow them to stand upright.

Detailed explanation-3: -A cell wall is a rigid layer that is found outside the cell membrane and surrounds the cell. The cell wall contains not only cellulose and protein, but other polysaccharides a s well . The cell wall provides structural support and protection.

Detailed explanation-4: -The cell wall is an outer protective membrane in many cells including plants, fungi, algae, and bacteria. Animal cells do not have a cell wall. The main functions of the cell wall are to provide structure, support, and protection for the cell.

Detailed explanation-5: -In Figure 3.8 b, the diagram of a plant cell, you see a structure external to the plasma membrane called the cell wall. The cell wall is a rigid covering that protects the cell, provides structural support, and gives shape to the cell. Fungal and protist cells also have cell walls.