What roles do polysaccharides play in living things?

There is starch which is excess sugar that is stored in plant, cellulose which makes up the plant cell wall and glycogen that can be broken down into energy for the body.

I'm sorry to hear that. i will try to answer your other questions if it is within my ability. : )answers: my favourite colour is black.my favourite food is pasta.my favourite school subject is english, but i do also like lunch time.my least favourite subject is history as well as geography. i have currently garnered a quite equal hatred for both of the subjects.what about you? well, you for the points. : )