IGNOU BCHCT 135 2026 - ) Write the structures of ẞ-lactose and sucrose with ap

Question

) Write the structures of ẞ-lactose and sucrose with appropriate labelling.

01 Dec 2025

Answer :

Word Count : 147

β-Lactose consists of β-D-galactose and D-glucose joined through a β-1→4 glycosidic bond. In β-D-galactose, the anomeric carbon (C1) bears the OH group in the β-orientation and links to the C4 hydroxyl group of glucose. The galactose ring is usually shown in the β-pyranose form, labelled from C1 to C6, with the CH₂OH group at C6. The

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