Monosaccharides can be formed with different sizes. The smallest are made of three carbon atoms. They can also be classified into aldose, or a ketose, depending on the functional group present. An aldose contains an aldehyde while a ketose contain a ketone.
How do the structures of glucose and galactose differ?
A. The spatial arrangement of the hydroxyl group of the fourth carbon is different.
B. Glucose is a hexose; galactose is a pentose.
C. Glucose is an aldose; galactose is a ketose.
D. Glucose has more hydrogen and fewer oxygen atoms than galactose.
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