Home Preparation for National Talent Search Examination (NTSE)/ Olympiad
Chapter : 1. The cell
Cell wall
Cell wall : • In plants, one another rigid is called 'Cell wall'. It is made up of cellulose which provide structural strength to plant. Function of cell wall : • It maintains the shape of cell. • It protect the cells from mechanical injury & prevents their desication. • It provide mechanical support against gravity. It is due to rigid cell walls that the aerial part of plant are able to keep erect & expose their leaves to sunlight. • Cell walls permit the cells to with stand very dilute external media without bursting.