Common example of carbohydrates are__________________?
Correct answer: A. Cellulose glycogen galactose
- A. Cellulose glycogen galactose
- B. Glyceraldehydes glucose peptone
- C. Glycerol phospho lipids collagen
- D. Legumin amylopectin albumin
Explanation
Cellulose, glycogen and galactose are all carbohydrates: cellulose and glycogen are polysaccharides, while galactose is a monosaccharide. The other options contain proteins, lipids or glycerol, so a student choosing them is confusing different classes of biomolecules.
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About Classification of Organic Compounds
Organic compounds are classified by carbon skeleton into open-chain, branched-chain and cyclic compounds, including homocyclic and heterocyclic types. The classification also uses functional groups to distinguish hydrocarbons, halo compounds, alcohols, aldehydes, ketones, carboxylic acids and their derivatives, which is different from naming compounds by IUPAC rules.
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