Which of the following statement(s) are correct regarding the diagram shown above?

It is lactose.

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It is composed of

β

-D-galactose and

β

-D-glucose.

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Left side unit is galactose and right side unit is glucose.

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There is a free anomeric

- O H

group.

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Solution

The correct options are
A It is lactose.
B It is composed of $β$ -D-galactose and $β$ -D-glucose.
C Left side unit is galactose and right side unit is glucose.
D There is a free anomeric $- O H$ group.
One anomeric $- O H$ of $β$ -D-glucose is free.
All other statements can be concluded using the structures of galactose and glucose in their ring form.

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Similar questions

Regarding lactose, some statements are given below

A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose

B) In lactose C₁ of β-D-galactose has acetal structure and C₁ of β-D-glucose has hemiacetal structure

C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit

The correct statements are

Regarding lactose, some statements are given below

A) On hydrolysis, lactose gives β-D-galactose and β-D-glucose

B) In lactose C₁ of β-D-galactose has acetal structure and C₁ of β-D-glucose has hemiacetal structure

C) In lactose molecule, β-D-galactose is a non-reducing unit and β-D-glucose is reducing unit

The correct statements are

β- D - Galactose is represented as

Glycogen is a homopolymer made of

(a) glucose units (b) galactose units

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