The bond formed between glucose and galactose monosaccharides to produce the disaccharide lactose, is _____.

$α$ -1,2- glycosidic bond

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$β$ -1,4- glycosidic bond

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$α$ -1,4- glycosidic bond

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$β$ -1,2- glycosidic bond

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Solution

The correct option is B
$β$ -1,4- glycosidic bond

The bond formed between glucose and galactose monosaccharides to produce the disaccharide lactose is a $β$ -1,4- glycosidic bond. This bond is formed between C1 of galactose and C4 of glucose, and it happens as a reduction process.

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Similar questions

The bond formed between glucose and galactose monosaccharides to produce the disaccharide lactose, is _____.

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

Classify the following into monosaccharides and disaccharides.

Ribose, 2-deoxyribose, maltose, galactose, fructose and lactose

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

QUESTION 14.4

Classify the following into monosaccharides and disaccharides, Ribose, 2- deoxyribose, maltose, galactose, fructose and lactose.

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