Cellulose is a straight chain polysaccharide which is made up of glucose molecules that are joined together by beta 1,4 glycosidic bonds. Cellulose is the principal structural material of plants and plants use it to build strong structures. For instances, the rigid cell wall of plant cells is made up of cellulose.
Thus, the correct option is D.
The reason for why celery stalk firms in water is because of its hypotonic environment and the salt content transfers into the celery stalk which makes the cell firm and significantly bigger.
I think it’s thick
Explanation
They group together for warmth when it's cold and they also group together in case of threats.
C.Adenine and guanine<span> are </span><span>purines in DNA.</span>
