AP BIOLOGY

Detailed explanation-1: -Like starch in plants, glycogen is found as granules in liver and muscle cells.

Detailed explanation-2: -Starches are large, branched polymers of glucose that store energy for plants. Likewise, glycogen is a glucose polymer that is stored by animal cells for energy. Animals store glucose in the form of glycogen.

Detailed explanation-3: -Animal body stores carbohydrate as glycogen. It is also called animal starch because its structure is similar to amylopectin. It is present in brain, liver and muscles.

Detailed explanation-4: -Glycogen is an extensively branched glucose polymer that animals use as an energy reserve. It is the animal analog to starch. Glycogen does not exist in plant tissue. It is highly concentrated in the liver, although skeletal muscles contain the most glycogen by weight.

Detailed explanation-5: -Glycogen is called animal starch because its structure is very similar to the starch (amylopectin). Also, it does a similar thing as starch (amylopectin) does in plants i.e. source of energy.