How Does the Structure of α-D-Glucose Differ from That of β-D-Glucose

question 12

Multiple Choice

How does the structure of α-D-glucose differ from that of β-D-glucose?

• A)α-D-Glucose is an aldose and β-D-glucose is a ketose.
• B)In α-D-glucose the −OH group on the last chiral carbon is on the left,and in β-D-glucose the −OH group on the last chiral carbon is on the right.
• C)In α-D-glucose the −OH group on the hemiacetal carbon is below the ring,and in β-D-glucose the −OH group on the hemiacetal carbon is above the ring.
• D)In α-D-glucose the last −CH₂OH group is on the right,and in β-D-glucose the −CH₂OH group is on the left.
• E)There is no structural difference between the two.

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