Epimer combination (s) is/are :
Correct Answer: D-glucose & D-mannose
Description: C, i.e. D-glucose - Carbohydrate isomers that differ in configuration around only one carbon atom are called epimers. D-glucose and Dmannose are C2 epimers whereas D- glucose and D- galactose differ only at C4. However, D-mannose & D- galactose are not epimersQ as they differ at 2 carbons (2 & 4). Enantiomers (optical isomers or stereoisomers) are pairs of structures that are mirror images of each other but not identical , similar to left and right hand which are the same but opposite. These are non super imposable and are designated as D and L-sugar. Each enantiomer often shows different chemical reactions with other enantiomers. Because of presence of many enantiomers in living beings, there is usually a marked difference in effects of two stereoisomers. For example only one of drug stereoisomer produces desired effect while the other does not.
Category:
Biochemistry
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now