Glycogen serves as a reserve carbohydrate of animals and is, therefore known as animal starch because of its structure similar to amylopectin but more branched than that. Glycogen is a polymer of about a thousand glucose units arranged in the form of a highly branched chain. When muscles, liver, and other body cells are saturated with glycogen, excess glucose is converted to fat and is stored as adipose tissue. Excess glucose is changed to glycogen in the liver. Glycogen is the branched-chain polymer of α - D glucose units in which a chain is formed by C 1 - C 4 glycosidic linkage whereas branching occurs by the formation of C 1 - C 6 glycosidic linkage. Fig- structure of glycogen

What are reducing sugars?

Reducing sugars- The saccharides which reduce Fehling's solution and Tollen's reagent are called reducing sugars. It contains a group that can easily oxides the above reagents. All monosaccharides whether aldose or ketose are reducing sugars. It contains either α -hydroxy aldehyde or α -hydroxy ketones. They have cyclic hemiacetal or hemiketal or structure in equilibrium with open chain forming CHO or C = O group. These are capable of acting as reducing agent because it has a free aldehyde group or a free ketone group. For example- Maltose, galactose, glucose, and lactose

E M B I B E

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 6

MEDIUM

12th West Bengal Board

IMPORTANT

Earn 100

What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?

Important Questions on Biomolecules

MEDIUM

12th West Bengal Board

IMPORTANT

NEW SYSTEMATIC MODERN CHEMISTRY>Chapter 14 - Biomolecules>REVIEW EXERCISES>Q 6

When RNA is hydrolysed, there is no relationship between the quantities of different bases obtained? What does this fact suggest about the structure of RNA ?