Monosaccharides can be classified based on the number of carbons they contain and the type of group attached to the molecule. Select all the monosaccharides that are correctly paired with their class.

a. erythrose : tetrose ketose
b. dihydroxyacetone : triose ketose
c. erythrulose : tetrose aldose
d. fructose : hexose ketose
e. ribose : hexose aldose
f. glyceraldehyde : triose aldose

Epimers are monosaccharide diastereoisomers that have a single asymmetric carbon. Anomers are diastereoisomers in which the hemiacetal carbon of a cyclic monosaccharide is asymmetric. Determine whether each pair of monosaccharides consists of epimers, anomers, or an aldose‑ketose pair.

Explanation:

Monosaccharides are the simplest form of sugars found in innumerable common food items such as honey, cane sugar, fruits

Monosaccharides are divided into two groups depending on the presence of functional groups,if aldehyde group is present then it is known aldoses and if ketone group is present then it is known as ketoses

On the basis of carbon atoms they can be classified as: triose(3),tetrose(4),pentose(5),hexose(6) and so on

a. erythrose : tetrose ketose-It is not correctly paired because erythrose is a tetrose monosaccharide which has one aldehyde group hence is an aldose

b. dihydroxyacetone : triose ketose-It is correctly paired;it is an aldose-ketose pair

c. erythrulose : tetrose aldose-It is not correctly paired because erythrulose is a tetrose monosaccharide having ketone as functional group hence is a ketose

d. fructose : hexose ketose-it is correctly paired;It is an anomer because in D-fructose carbonyl group is at C-2 hence C-2 is the anomeric carbon

e. ribose : hexose aldose-it is not correctly paired because ribose is an aldo pentose not hexose;ribose is an aldo-ketose pair

f. glyceraldehyde : triose aldose-it is correctly paired;an aldo group

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what are the options