Question

Glycogen is a polysaccharide used for energy storage by

Answer 1

Glycogen is a branched polysaccharide that serves as an energy storage molecule in animals, synthesized and stored in liver and muscle cells, and rapidly converted into glucose during energy demands.

Step-by-step explanation:

Glycogen is a highly branched polysaccharide used for energy storage by animals, including humans. This molecule is composed of glucose monomers and is similar in structure to amylopectin, but with more frequent branching which allows for quick access to glucose units during energy needs. Glycogen is synthesized and stored predominantly in the liver and muscle cells. When blood sugar levels decrease, a process known as glycogenolysis occurs where glycogen is broken down into glucose, which can then be released into the bloodstream to maintain normal blood sugar levels and provide energy for cellular processes, particularly during times of fasting or intense exercise.

Answer 2

Answer: The liver and muscles.

Explanation:

Liver and muscles store glucose, in response to insulin hormone, in a form of glycogen for use during starvation period. When glucose is too much in the blood, insulin is secreted by islets cells in the pancreas. Glycogen synthesis is then initiated in liver where it is stored.

Glycogen is a polymer of glucose just like starch in plants. 60% of glucose from glycogen store is used up by the brain as its only source of energy.