Scelta multipla
Which image represents the proper convention for carbon numbering of cyclic sugars?
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- 1. Introduction to Biochemistry4h 38m
- What is Biochemistry?7m
- Characteristics of Life12m
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- Glucose and Glycogen Regulation Practice 14m
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- Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m
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- Photophosphorylation 15m
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- Practice: Amino Acid Oxidation 12m
- Practice: Amino Acid Oxidation 22m
- Practice: Oxidative Phosphorylation 15m
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- Practice: Oxidative Phosphorylation 35m
- Practice: Photophosphorylation 15m
- Practice: Photophosphorylation 21m
9. Carbohydrates
Cyclic Monosaccharides
Scelta multipla
Below is the structure for a cyclic D-monosaccharide. Which labeled carbon is the anomeric carbon?
A
A
B
B
C
C
D
D
E
E
F
F
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Guida verificata passo dopo passo1
Identify the cyclic structure as a pyranose, which is a six-membered ring containing an oxygen atom.
Recognize that the anomeric carbon is the carbon that was the carbonyl carbon (either aldehyde or ketone) in the acyclic form of the sugar.
In the cyclic form, the anomeric carbon is the one directly bonded to two oxygen atoms: one in the ring and one as a hydroxyl group.
Examine the structure and locate the carbon that is bonded to the ring oxygen and also has a hydroxyl group attached.
Determine that the labeled carbon 'B' is the anomeric carbon, as it fits the criteria of being bonded to two oxygen atoms.
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