Carbohydrates Flashcards Preview

Biochemistry I > Carbohydrates > Flashcards

Flashcards in Carbohydrates Deck (18)
Loading flashcards...
1

Epimer

2 sugars that differ in the configuration of 1 carbon (type of diasteriomer). Require 2+ chiral centers.

2

Anomeric carbon

Epimer at the hemiacetal/acetal carbon. Also known as reducing end.

3

Mutarotation

Conversion between alpha and beta anomers.

4

5 membered O containing ring

Furan ring.

5

6 membered O containing ring

Pyran ring

6

Disaccharides

Formed by condensation reaction between alcohol groups of two monosaccharides.

7

Aldehyde + alcohol =`

Hemiacetal.

8

Ketone + alcohol =

Hemiketal.

9

Linkage between two monosaccharides

O-glycosidic linkage.

10

Functions of homopolysaccharides

Energy storage and structural function.

11

Functions of heteropolysaccharides

Structural function and cellular function.

12

What is the main storage polysaccharide in plants?

Starch, a mixture of two homopolysaccharides of glucose

13

Glycogen

Main carbohydrate storage system in animal cells, mainly stored in the liver.

14

Amylopectin

Branched homopolysaccharide, glucose is the monomer.

15

Cellulose

Fibrous, water insoluble polymer of unbranched homopolysaccharide of glucose found in the cell wall of plants.

16

Branched heteropolysaccharides

Mono and oligosaccharides added onto proteins.

17

N-linked oligosaccharides

Added onto proteins in preassembled oligosaccharide units, added to proteins destined to the extracellular side.

18

O-linked oligosaccharides

Added to proteins one monosaccharide at a time, added to proteins that are destined to the intra and extracellular sides.