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BI220 E1 L11

lecture 11 slides

QuestionAnswer
carbohydate ch2o. short/long term energy source, common component of structural materials. ends in -ose
monosaccharide single carbohydrate monomer / molecule
disaccharide 2 linked monomers
polysaccharide many linked monomers
homopolysaccharide same monosaccharide unit
heteropolysaccharide 2+ diff monosaccharide units
aldose contains aldehyde
ketose contains ketone
isomers same # of atoms
structural isomers isomers which differ based on how the atoms are connected
stereoisomers same atomic connectivity, differ in spatial orientation
enantiomers special class of stereoisomers - mirror images
2 enantiomers D configuration (OH on right) L configuration (OH on left)
monosaccharide equilibrium states linear & ring conformations
carb bonds glycosidic
glycogen polysaccharide storage form used in animals, produced & stored in liver
starch polysaccharide storage form used in plants. made of amylose & amylopectin
a-glucose examples glycogen, amylose, amylopectin
b-glucose examples cellulose, chitin
break down complex sugars through hydrolysis glycosidases (humans only have a)
glycogenesis making glycogen when there is more glucose than ATP demand
glycogenolysis breaking down glycogen because low glucose
gluconeogenesis making glucose from non-carb molecules
insulin produced by pancreas, triggers uptake of glucose from blood, maintains blood glucose concentrations
Created by: knorrod
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