Lactose is disaccharide of

Question

Lactose is disaccharide of (A)  α-D - glucose and α-D - fructose (B)  β-D- glucose and β-D- galactose (C)  α-D - glucose and β-D- ribose (D)  α-D --glucose and β-D - galactose

Tardigrade Admin · Accepted Answer

Lactose is a disaccharide of β-D(+)- glucose and β-D(+) -galactose. These monosaccharides are joined together with β-1,4 - glycosidic linkage. It is a reducing sugar. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/d298c0bf14c0e1bfb4c9de790eb05db0-.png" />

Q. Lactose is disaccharide of

$α - D -$ glucose and $α - D -$ fructose

$β - D -$ glucose and $β - D -$ galactose

$α - D -$ glucose and $β - D -$ ribose

$α - D$ --glucose and $β - D -$ galactose

Lactose is a disaccharide of $β - D (+) -$ glucose and $β - D (+)$ -galactose. These monosaccharides are joined together with $β - 1, 4 -$ glycosidic linkage. It is a reducing sugar.

Q. Lactose is disaccharide of

α−D− glucose and α−D− fructose

β−D− glucose and β−D− galactose

α−D− glucose and β−D− ribose

α−D --glucose and β−D− galactose

Lactose is a disaccharide of β−D(+)− glucose and β−D(+) -galactose. These monosaccharides are joined together with β−1,4− glycosidic linkage. It is a reducing sugar.

$α - D -$ glucose and $α - D -$ fructose

$β - D -$ glucose and $β - D -$ galactose

$α - D -$ glucose and $β - D -$ ribose

$α - D$ --glucose and $β - D -$ galactose

Lactose is a disaccharide of $β - D (+) -$ glucose and $β - D (+)$ -galactose. These monosaccharides are joined together with $β - 1, 4 -$ glycosidic linkage. It is a reducing sugar.