Name the substance that mainly composes the plant cell wall., The substance that mainly composes the plant cell wall is Cellulose., What is a cell wall?, A rigid outer covering present outside the plasma membrane in plant cells., Is cell wall living or non-living?, It is a non-living, rigid, and fully permeable outer layer., Write any two functions of the cell wall., ✮Provides shape and support to the cell ✮Protects the cell from bursting.✮It gives protection to the cell and also determines its shape., Why is the cell wall absent in animal cells?, Animal cells require flexibility for movement, which a rigid cell wall would restrict.✮Animals need to move, run, and swim to find food and escape predators.✮ A rigid cell wall would make the body stiff and prevent the complex muscle contractions required for movement., Name the three layers of plant cell wall., ✮Middle lamella✭ Primary cell wall ✮ Secondary cell wall.

Cell wall

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