What is the main source of carbohydrates for animals?
Correct answer: D. Glycogen
- A. Glucose
- B. Starch
- C. Sucrose
- D. Glycogen
Explanation
Glycogen is a polysaccharide that serves as a form of stored energy in animals and fungi. Glucose is the primary source of energy. It is the fuel most often burnt in cellular respiration. Excess glucose is polymerized and stored as glycogen in animals and starch in plants. Humans store glycogen in two locations; liver and muscles. Thus, the correct answer is option 'Glycogen'.
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About Carbohydrates
Carbohydrates are organic compounds classified as monosaccharides, disaccharides and polysaccharides according to their structure and hydrolysis products. The topic covers glycosidic bonds, glucose and fructose, sucrose, lactose and maltose, starch, glycogen and cellulose, along with their roles in energy storage, structural support and food tests.
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