What is the basic structural difference between starch and cellulose?

What is the basic structural difference between glucose and fructose ?

Starch and cellulose are

(i) Write the structural difference between starch and cellulose. (ii) What type of linkage is present in Nucleic acids ? (iii) Give one example each for fibrous protein and globular protein.

What is the structural difference between a nucleoside and nucleotide ?