_ are specific structures related to monosaccharides:
Correct answer: B. Keto group
- A. Glycosidic bond
- B. Keto group
- C. Maltose
- D. Fructose
Explanation
The correct answer is the keto group. A keto group is a defining structural feature of ketose sugars, which are a type of monosaccharide. Monosaccharides like fructose contain a keto group, which is a carbonyl group bonded to two carbon atoms. Other options are incorrect because a glycosidic bond is a linkage between sugar molecules, maltose is a disaccharide, and fructose is an example of a monosaccharide rather than a structural feature.
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The chapter covers water's polarity and biological roles, carbohydrates, lipids, proteins and nucleic acids, including their monomers, bonds, structures and functions. It also distinguishes RNA from DNA and explains conjugated molecules such as glycoproteins, glycolipids and nucleoproteins, which combine organic molecules with a non-protein component.
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