Glycogen is a better short term storage molecule in animals than starch is in plants partly because glycogen
Correct answer: D. is far more branched, so many ends can be hydrolysed at once
- A. contains no glycosidic bonds
- B. is soluble and diffuses freely out of the cell
- C. is built from beta glucose
- D. is far more branched, so many ends can be hydrolysed at once
Explanation
Extensive branching gives a large number of terminal glucose units, so enzymes can release glucose very rapidly when an active animal needs it. Being a large polymer it is also osmotically inactive and compact enough to store in liver and muscle. Starch is less branched and is adequate for a plant, which does not need sudden bursts of energy.
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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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