IIT JAM Exam > IIT JAM Questions > The C-2 epimer of D-glucose isa)D-Mannoseb)D-...
Start Learning for Free
The C-2 epimer of D-glucose is
- a)D-Mannose
- b)D-Fructose
- c)D-Galactose
- d)D-Gulose
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-...
Here is the link :-
Mannose: C-2 epimer of Glucose. Source: Pfanstiehl, Inc. Mannose is a C-2 epimer of glucose and a sugar monomer of the aldohexose series of carbohydrates. Mannose is important in human metabolism, particularly in the proper glycosylation of native proteins.
Most Upvoted Answer
The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-...
The C-2 epimer of D-glucose is D-Mannose.
Explanation:
D-glucose is an important monosaccharide and is classified as an aldohexose, meaning it has six carbon atoms and an aldehyde functional group. It exists in a cyclic form in aqueous solution, where the aldehyde group reacts with the hydroxyl group on the C-5 carbon to form a hemiacetal.
To understand the C-2 epimer of D-glucose, we need to first understand what an epimer is. An epimer is a stereoisomer that differs in the configuration at only one carbon atom. In the case of glucose, the carbon atom in question is the C-2 carbon.
D-glucose has the hydroxyl group (-OH) on the C-2 carbon positioned downwards in its cyclic form. The C-2 epimer of D-glucose, D-mannose, has the hydroxyl group on the C-2 carbon positioned upwards.
To visualize this, let's compare the structures of D-glucose and D-mannose:
D-Glucose:
- The hydroxyl group on the C-1 carbon is positioned downwards.
- The hydroxyl group on the C-2 carbon is positioned downwards.
- The hydroxyl group on the C-3 carbon is positioned upwards.
- The hydroxyl group on the C-4 carbon is positioned downwards.
- The hydroxyl group on the C-5 carbon is positioned upwards.
- The hydroxyl group on the C-6 carbon is positioned downwards.
D-Mannose:
- The hydroxyl group on the C-1 carbon is positioned downwards.
- The hydroxyl group on the C-2 carbon is positioned upwards.
- The hydroxyl group on the C-3 carbon is positioned upwards.
- The hydroxyl group on the C-4 carbon is positioned downwards.
- The hydroxyl group on the C-5 carbon is positioned upwards.
- The hydroxyl group on the C-6 carbon is positioned downwards.
Therefore, the C-2 epimer of D-glucose is D-mannose, as it differs from D-glucose in the configuration of the hydroxyl group on the C-2 carbon.
Explanation:
D-glucose is an important monosaccharide and is classified as an aldohexose, meaning it has six carbon atoms and an aldehyde functional group. It exists in a cyclic form in aqueous solution, where the aldehyde group reacts with the hydroxyl group on the C-5 carbon to form a hemiacetal.
To understand the C-2 epimer of D-glucose, we need to first understand what an epimer is. An epimer is a stereoisomer that differs in the configuration at only one carbon atom. In the case of glucose, the carbon atom in question is the C-2 carbon.
D-glucose has the hydroxyl group (-OH) on the C-2 carbon positioned downwards in its cyclic form. The C-2 epimer of D-glucose, D-mannose, has the hydroxyl group on the C-2 carbon positioned upwards.
To visualize this, let's compare the structures of D-glucose and D-mannose:
D-Glucose:
- The hydroxyl group on the C-1 carbon is positioned downwards.
- The hydroxyl group on the C-2 carbon is positioned downwards.
- The hydroxyl group on the C-3 carbon is positioned upwards.
- The hydroxyl group on the C-4 carbon is positioned downwards.
- The hydroxyl group on the C-5 carbon is positioned upwards.
- The hydroxyl group on the C-6 carbon is positioned downwards.
D-Mannose:
- The hydroxyl group on the C-1 carbon is positioned downwards.
- The hydroxyl group on the C-2 carbon is positioned upwards.
- The hydroxyl group on the C-3 carbon is positioned upwards.
- The hydroxyl group on the C-4 carbon is positioned downwards.
- The hydroxyl group on the C-5 carbon is positioned upwards.
- The hydroxyl group on the C-6 carbon is positioned downwards.
Therefore, the C-2 epimer of D-glucose is D-mannose, as it differs from D-glucose in the configuration of the hydroxyl group on the C-2 carbon.
|
Explore Courses for IIT JAM exam
|
|
Similar IIT JAM Doubts
The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer?
Question Description
The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer?.
The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? for IIT JAM 2024 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for IIT JAM 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer?.
Solutions for The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for IIT JAM.
Download more important topics, notes, lectures and mock test series for IIT JAM Exam by signing up for free.
Here you can find the meaning of The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The C-2 epimer of D-glucose isa)D-Mannoseb)D-Fructosec)D-Galactosed)D-GuloseCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice IIT JAM tests.
|
|
Explore Courses for IIT JAM exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup