Carbohydrates Flashcards
Simple Carbohydrates
Monosaccharides and disaccharides
Monosaccharides
Glucose, fructose, galactose
Disaccharides
Maltose, Sucrose, Lactose
Complex Sugars
Starch, glycogen, fiber
Triose
3 carbon
Tetrose
4 carbon
Pentose
5 carbon
Hexose
6 carbon
Aldose
Aldehyde group
Ketose
Ketone group
Isomer
Compounds that have the same chemical formula but have different structures
Epimer
Isomers that differ in configuration around only one
specific carbon atom (except for the carbonyl carbon)
Enantiomers
Mirror images (D is functional group to the right with L being left)
Anomeric carbon
Carbon below the oxygen (1 glucose/galactose, 2 fructose)
Alpha Configuration
OH on anomeric carbon facing down.
Beta Configuration
OH on anomeric carbon facing up.
Reducing sugar
OH on anomeric carbon not bonded. (Free as OH)
Nonreducing sugar
OH on anomeric carbon connecting bond to other sugar
Glycosidic bond
Between sugars formed by glycosyltransferases
Maltose
2 glucose (1-4 alpha bond)
Sucrose
Glucose and fructose (1-4 alpha bond)
Lactose
Galactose and glucose (1-4 beta bond)
Starch
Chain of glucose
Glycogen
Branched chains
Cellulose
Closely compact and stacked glucose.Rigid