What are the disaccharides and polysaccharides present in each of the following?

Question

A. sugar

B cotton

C milk

D potatoes

Answer 1

A. sugar ............sucrose

B cotton.............cellulose

C milk ....lactose

D potatoes ..........starch

Answer 2

in sugar it is glucose. in milk it is lactose. cotton i THINK has cellulose and potatoes(not sure in this one) have fructose.

Answer 3

Dang!  That's basically four different questions in one.  Oh well, I'll give it a go.

A) Common table sugar is just sucrose (the disaccharide of glucose and fructose).

B) Cotton fiber is most comprised of cellulose, the polysaccharide made of thousands of beta-linked glucose subunits.

C) Milk's main carbohydrate is lactose, a disaccharide of galactose and glucose.

D) Potatoes contain large amounts of starch, which is also a polysaccharide of glucose molecules, like cellulose.  The difference is the way the glucose units are linked together; in starch, it is referred to as "alpha linking".