Question

$\alpha$ - maltose consists of

• A. one $\alpha$-$D$-glucopyranose unit and one $\beta$-$D$-glucopyranose unit with $1-2$ glycosidic linkage
• B. two $\alpha-$D-glucopyranose units with $1-2$ glycosidic linkage
• C. two $\beta$-D-glucopyranose units with $1-4$ glycosidic linkage
• D. two $\alpha$-D glucopyranose units with $1-4$ glycosidic linkage

Answer 1

Answer: (D)

In maltose Ist carbon atom of one $\alpha$ -D glucopyranose unit is linked to 4 th carbon atom of adjacent $\alpha$ -D glucopyranose unit through glycosidic linkage.