Answer the question on the basis of passage given below:
Living systems are made up of various complex biomolecules like carbohydrates, proteins, nucleic acids, lipids etc. Proteins and carbohydrates are essential constituents of our food. Carbohydrates are primarily produced by plants and form a very large group of naturally occurring organic compounds. Some common examples are cane sugar, glucose, starch etc.
Carbohydrates are stored in animals as:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → Glycogen
Animals store their reserve carbohydrate as glycogen, a polysaccharide of α-D-glucose units. Its structure is like that of amylopectin but even more highly branched, which is why it is called animal starch. It is stored mainly in the liver and muscles, and when the body needs glucose, enzymes break the glycogen down to glucose.
NCERT (2026-27 edition):
Glycogen – “The carbohydrates are stored in animal body as glycogen. It is also known as animal starch because its structure is similar to amylopectin and is rather more highly branched. It is present in liver, muscles and brain. When the body needs glucose, enzymes break the glycogen down to glucose. Glycogen is also found in yeast and fungi.”