Cellulose is an odorless, tasteless and biodegradable substance found in the cell wall of green plants, certain types of algae and its function is  to support and protect plants and also  to strengthen plants  .

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The Brainliest Answer!
Cellulose is an insoluble and dead substance.The cell wall of plant cells are made out of it.
1.)It cannot by digested by the human digestive system,hence when we eat vegetables or fruits,the cellulose remains in its original condition and acts as a roughage in the digestive system.This helps us in the clearance of our bowels.TO avoid constipation,etc.
2.)It gives a  rigid shape to the plant cells and the membrane which allows all the substances to enter into the plant cell.
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