__________ is example of pure form of cellulose?
Correct answer: C. Cotton
- A. Silk
- B. Wool
- C. Cotton
- D. Paper
Explanation
Cotton fibres are composed almost entirely of cellulose, a polymer of beta-glucose units, making cotton the usual example of relatively pure natural cellulose. Students may choose paper because it is also mainly cellulose, but paper commonly contains lignin, fillers or other additives and is not considered a pure form.
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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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