The monosaccharide constituents of lactose are

Question

The monosaccharide constituents of lactose are (A)  α-D- glucose and β-D- fructose (B)  α-D- glucose only (C)  β-D- glucose only (D)  β-D- glucose and β-D- galactose

Tardigrade Admin · Accepted Answer

Lactose on hydrolysis with dilute acid, produces an equimolar mixture of β-D(+)-glucose and β-D(+) - galactose, thus, its monosaccharide constituents are β-D- -glucose and β-D-galactose

Q. The monosaccharide constituents of lactose are

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

$α - D -$ glucose only

$β - D -$ glucose only

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

Lactose on hydrolysis with dilute acid, produces an equimolar mixture of $β - D (+)$ -glucose and $β - D (+)$ - galactose, thus, its monosaccharide constituents are $β - D$ - -glucose and $β$ - $D$ -galactose

Q. The monosaccharide constituents of lactose are

α−D− glucose and β−D− fructose

α−D− glucose only

β−D− glucose only

β−D− glucose and β−D− galactose

Lactose on hydrolysis with dilute acid, produces an equimolar mixture of β−D(+)-glucose and β−D(+) - galactose, thus, its monosaccharide constituents are β−D- -glucose and β-D-galactose

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

$α - D -$ glucose only

$β - D -$ glucose only

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

Lactose on hydrolysis with dilute acid, produces an equimolar mixture of $β - D (+)$ -glucose and $β - D (+)$ - galactose, thus, its monosaccharide constituents are $β - D$ - -glucose and $β$ - $D$ -galactose