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JEE Main · 2025 · 28 Jan 2025 · Shift 2 · Biomolecules

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Match List-I with List-II

List-I (Saccharides):
(A) Sucrose
(B) Maltose
(C) Lactose
(D) Amylopectin

List-II (Glycosidic-linkages found):
(I) 1-4
(II) and
(III)
(IV)

Choose the correct answer from the options given below :

Answer: A → III, B → I, C → IV, D → II

Solution

Sucrose is built from an -glucose and a -fructose joined head-to-head through their anomeric carbons, giving an glycosidic bond. Maltose is two glucose units joined . Lactose is galactose joined to glucose through a linkage. Amylopectin, the branched component of starch, has glucose units linked along its chains with branch points.

So sucrose pairs with , maltose with , lactose with , and amylopectin with and .

JEE Main · 2025 · 28 Jan 2025 · Shift 2 · Match the columns

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