Carbohydrates Q4 Flashcards
What are anomers?
Isomers that differ in location of OH when ring is closed. (up or down)
What are the two monosaccharides we need to know from lecture? Which is an aldohexose and which is a ketohexose?
Glucose which is an aldohexose and fructose which is a ketohexose.
Where if the first OH on an alpha sugar?
On the bottom of the ring.
Is sucrose a reducing sugar?
No.
If I am reducing something, what do I become?
Oxidized.
What allows a sugar to be a reducing sugar?
When it has an anameric carbon.
Why are we not able to break down cellulose?
Because of the beta 1-4 glycosidic bonds.
What are the bonds for amylose and amylopectin?
Amylose is alpha 1-4 linkage and amylopectin is alpha 1-6.
How often do the amylopectin branches occur in starch and glycogen?
In starch it is every 50 and glycogen is every 10.
What type of bonding does chitin have?
Beta 1-4 linkage.
What is N- and O- Glycosylation?
N is when it is attached to a nitrogen group and O when it is attached to the oxygen group. (Connections to AA)
