Choose the correct combinations of the monosaccharides forming disaccharides.
i. Glucose + Glucose = Maltose ii. Glucose + Fructose = Lactose

iii. Glucose + Fructose = Sucrose iv. Glucose + Galactose = Lactose

(i),(ii),(iii) only

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(ii) only

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(i),(iii),(iv)only

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All of the above

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Solution

The correct option is C
(i),(iii),(iv)only

Sucrose is table sugar or cane sugar. It is a disaccharide, composed of two monosaccharides, glucose and fructose as its sub units.

Lactose is the sugar found only in milk. It is a disaccharide composed of galactose and glucose units.

Maltose or malt sugar, is a disaccharide formed from two units of glucose wich is a monosaccharide.

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Similar questions

Choose the correct combinations of the monosaccharides forming disaccharides.

i. Glucose + Glucose = Maltose ii. Glucose + Fructose = Lactose

iii. Glucose + Fructose = Sucrose iv. Glucose + Galactose = Lactose

Which one of the following pairs of nutrients includes both as simple sugars (monosaccharides) ?

(a) Sucrose and glucose

(b) Glucose and maltose

(d) Maltose and lactose

Match the List-I and List-II:

List I (Saccharides)	List II (Formed by)
(A) Sucrose	(i) $β$ -D glucose $C_{1} - C_{4}$ glycosidic linkage
(B) Lactose	(ii) $α$ -D glucose, $β$ -D fructose $C_{1} - C_{2}$ glycosidic linkage
(C) Cellulose	(iii) $β$ -D glucose, $β$ -D galactose $C_{1} - C_{4}$ glycosidic linkage

A) Sucrose	i) Glucose $+$ Fructose $+$ Galactose
B) Lactose	ii) Glucose $+$ Fructose
C) Maltose	iii) Glucose $+$ Galactose
D) Raffinose	iv) Glucose $+$ Glucose

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