Which of the following is not a biopolymer?

Consider the following molecules:
Glucose $(K)$,Mannose $(L)$,Galactose $(M)$,$\alpha-Glucose$ $(N)$,$\beta-Glucose$ $(O)$
The correct set of epimer and anomer is respectively:
Epimer - Anomer

Which of the following is a reducing sugar?

Write a note on Disaccharide compounds.

Which of the following statements is not true for sucrose?

Identify the correct set of monosaccharides present in sucrose $(X)$,lactose $(Y)$ and maltose $(Z)$.