Two distinct chemical isomers, known specifically as -D-glucopyranose and -D-glucopyranose, exist. W — Biomolecules Chemistry Question

💡 Solution & Explanation

$\alpha$ and $\beta$ cyclic sugars are defined entirely by the newly formed chiral center upon ring closure (the hemiacetal/anomeric carbon, $C-1$ in aldoses). Because they differ in stereochemistry strictly at this single, specific carbon atom, they are classed as anomers.