OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Aldoses have the primary group attached to the first carbon atom, while ketoses have it attached to the 2nd.
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Ketoses have the primary group attached to the first carbon atom, while aldoses have it attached to the 2nd.
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There is no difference between them
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They are Epimers
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Detailed explanation-1: -The main difference between these two types of monosaccharides or sugars is the type of functional group present in them. While aldoses contain the aldehydic functional group, ketoses have the ketonic functional group in their chemical structure.
Detailed explanation-2: -Aldose and ketose are both simple sugars (monosaccharides). They differ in composition: aldose contains an aldehyde (CHO) group (consisting of carbon, hydrogen, and oxygen), while ketose contains a ketone (CO) group (consisting of carbon and oxygen). Fructose is a ketose; glucose and ribose are aldoses.
Detailed explanation-3: -An aldose is a monosaccharide that contains an aldehyde group (-CHO) at position 1 whereas a ketose is one that contains a ketone (C=O) at position 2 or 3. Thus, an aldopentose is a pentose with an aldehyde group. A ketopentose, in contrast, is a pentose with a ketone functional group located in position 2 or 3.
Detailed explanation-4: -Ketoses usually have their carbonyl on the C2 of the chain, while aldoses have their carbonyl on the first carbon of the chain.