LIFE SCIENCE

Detailed explanation-1: -Starch (a polymer of glucose) is used as a storage polysaccharide in plants, being found in the form of both amylose and the branched amylopectin. In animals, the structurally similar glucose polymer is the more densely branched glycogen, sometimes called “animal starch".

Detailed explanation-2: -As the name implies, polysaccharides are large high-molecular weight molecules constructed by joining monosaccharide units together by glycosidic bonds. They are sometimes called glycans. The most important compounds in this class, cellulose, starch and glycogen are all polymers of glucose.

Detailed explanation-3: -Starch is the main carbohydrate source of animals as it is present in every staple food. Glycogen is storage polysaccharide in animals, made of glucose chains that show branching after every 8 to 12 subunits. It is mainly made in the liver and muscles by a process called glycogenesis. It is found only in animals.