AIIMS 2019 Botany Carbohydrates MCQ Question
Assertion: Glycosidic bonds are formed by dehydration.
Reason: In polysaccharides, individual monosaccharide is linked by glycosidic bond.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
Glycosidic bonds in polysaccharides are formed through a dehydration reaction, where a hydroxyl group (–OH) from one monosaccharide and a hydrogen atom (H) from another combine to release a molecule of water (H₂O). This covalent bond links the two monosaccharides, allowing for the formation of complex carbohydrates. Since the question specifically addresses the formation of glycosidic bonds via dehydration, option B correctly identifies this process. Other options are not relevant as they do not provide information or context related to the formation of glycosidic bonds.
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