carbohydrates

Question 1

explain how cellulose molecules are adapted for their function in plant cells (3)

Answer 1

•cellulose is a long straight chain
•become linked together by many hydrogen bonds to form fibrils
•provide strength (to cell walls)

Question 2

describe a biochemical test to show that raffinose solution contains a non-reducing sugar (3)

Answer 2

•heat with an acid and neutralise
•heat with benedict’s solution
•red precipitate will form