M4: L-3 Flashcards
What are monosaccharides?
Simple sugars that cannot be broken down to more simple sugars
What are the two steric categories for fisher projected carbohydrates?
D and L
And R glyceraldehyde would be in which category when fisher projected? And an S?
- D
- L
When labelling a carbohydrate D or L, which carbon do we base this of?
The carbon closest to the CH2OH
What is included in the ring of a furanose?
Four C’s and one O
What is included in the ring of a pyranose?
Five C’s and one O
Is Glucose a furanose or a pyranose?
Pyranose
In an alpha monosaccharide, is the OH group on the anomeric carbon on the same or opposite side as the CH2OH group?
Opposite
In a beta monosaccharide, is the OH group on the anomeric carbon on the same or opposite side as the CH2OH group?
Same
Is a solution of glucose equal parts alpha and beta?
No
- 37% alpha
- 63% beta