Read the passage carefully and answer.

Carbohydrates are essential for both plants and animals. Some common examples of carbohydrates are glucose, fructose, sucrose, glycogen, cellulose and starch. They form a major portion of our food. Honey has been used for a long time as an instant source of energy in Ayurvedic medicine. Carbohydrates are used as storage molecules in both plants and animals. The cell wall of bacteria and plants is made of cellulose. We use cellulose in the form of wood for making furniture and as cotton fiber for clothing. They also provide raw material for textiles, paper, lacquers, and breweries. Carbohydrates are classified as Monosaccharides, Oligosaccharides and Polysaccharides on the basis of their behavior towards hydrolysis. Monosaccharides cannot be hydrolyzed further to simpler units whereas oligosaccharides can yield 2-10 units of monosaccharides on hydrolysis. Polysaccharides, which are non-sugars yield a large number of monosaccharide units on hydrolysis.

Answer the following questions about carbohydrates:

Animal starch is popularly known as

Glycogen

The correct answer is Option (4) → Glycogen **

• Glycogen is the primary storage polysaccharide in animals (stored mainly in liver and muscles), structurally similar to plant starch (amylopectin) but more highly branched.
• Starch is the storage polysaccharide in plants (consists of amylose and amylopectin).
• Cellulose is a structural polysaccharide in plant cell walls (β-1,4 linkages, not for energy storage).
• Amylose is a linear component of plant starch (α-1,4 linkages).

The term "animal starch" specifically refers to glycogen due to its analogous role in animals to that of starch in plants.