HORTICULTURE

Detailed explanation-1: -Cell wall is the characteristic feature of plant cells and not animal cells . This additional layer surrounding the cell membrane is required by plants for protection. Plant cells need protection against variations in temperature, high wind speed etc.

Detailed explanation-2: -Summary. Algae, fungi, and plant cells have a cell wall; animal cells and protozoans lack cell walls. The rigid, tightknit, polysaccharide molecular structure of the cell wall helps the cell resist osmotic lysis.

Detailed explanation-3: -Plant cells have a cell wall, as well as a cell membrane. In plants, the cell wall surrounds the cell membrane. This gives the plant cell its unique rectangular shape. Animal cells simply have a cell membrane, but no cell wall.

Detailed explanation-4: -The cell wall is present only in plant cells but not in animal cells because they provide rigidity and support to plants. The cell wall provides definite shape, strength, and protection against mechanical stress and physical shocks. It helps to control cell expansion due to the intake of water.