The term anomers of glucose refers to

• Biomolecules

The term anomers of glucose refers to

1. a mixture of (D)­glucose and (L)­glucose
2. enantiomers of glucose
3. isomers of glucose that differ in configuration at carbon one (C­₁)
4. isomers of glucose that differ in configurations at carbons one and four (C­₁ and C­₄)

Answer

Due to cyclic hemiacetal or cyclic hemiketal structures, all the pentoses and hexoses exist in two stereoisomeric forms i.e. α form in which the OH at C₁ in aldoses and C₂ in ketoses lies towards the right and β form in which it lies towards left. Thus glucose, fructose, ribose, etc., all exist in α and β form. Glucose exists in two forms α-­D-­glucose and β-­D-glucose. α-D(+) glucose → equilibrium mixture → β-­(D)­(+) glucose.

As a result of cyclization the anomeric (C­₁) becomes asymmetric and the newly formed –OH group may be either on left or on right in Fischer projection thus resulting in the formation of two isomers (anomers). The isomers having –OH group to the left of the C­₁ is designated β-­D-­glucose and other having –OH group on the right as α-­D-­glucose.

The correct option is C.