Question

Smallest polysaccharide is

• A. Starch
• B. Inulin
• C. Glycogen
• D. Cellulose

Answer 1

The correct option is A Starch

Starch is used as food reserves in plants. It is a polymer of glucose. It is formed by the attachment of glucose unit by glycosidic bonds. The basic formula of starch is (C${}_6$H${}_{10}$O${}_5$)n. It is a smallest polysaccharide. It is mainly produced in the plant by the process of photosynthesis.

It exist in two forms amylose and amylopectin. Amylose is formed by linkage of glucose by alpha 1,4 glucose unit. It is a linear polymer. Amylopectin is a branched polymer of glucose where two polymeric chain of glucose of alpha 1,4 glucose unit are linked by alpha 1,6 linkage.

So, the correct answer is option A.