IGNOU BBCCT 101 2026 - Explain the biological significance of mutarotation, anomers

Question

Explain the biological significance of mutarotation, anomers, epimers, and enantiomers.

14 Feb 2026

Answer :

Word Count : 286

Mutarotation refers to the change in optical rotation that occurs when a sugar solution reaches equilibrium between its alpha and beta forms. This phenomenon is commonly observed in monosaccharides such as D-glucose. When dissolved in water, the cyclic form of glucose opens into a linear structure and then recloses, forming either the alpha or beta anomer. The interconversion between these forms leads to a gradual change in optical rotation until equilibrium is achieved. Biologically, mutarotation is significant because enzymes involved in carbohydrate metabolism often recognize specific anomeric forms. The

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