All carbon atoms in monosaccharides except one have a/an:
Correct answer: D. Hydroxyl group
- A. Amino group
- B. Hydrogen atom
- C. Carboxyl group
- D. Hydroxyl group
Explanation
Monosaccharides are the simplest form of carbohydrates and typically contain multiple hydroxyl groups. Each carbon atom in a monosaccharide is bonded to a hydroxyl group, except for one that is bonded to a carbonyl group, forming either an aldehyde or a ketone. This is why the correct answer is the hydroxyl group. The other options, such as amino groups and carboxyl groups, are not typically found in simple sugar structures.
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