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Biochemistry Chapter 10 Flashcards

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6232044713Carbohydrate composition(CH2O)n0
6232194744Carbohydrate major functionsenergy storage; cell recognition and identification signals1
6232196167Types of carbohydratesmonosaccharides, disaccharides, polysaccharides2
6232200209Monosaccharidessimple sugars, a monomer unit3
6232201287Disaccharidesconsist of two simple sugars4
6232202349Polysaccharidesconsist of sometimes millions of monomer units5
6232205284Aldehydecarbonyl carbon is bound to H6
6232205285Aldosesmonosaccharides with an aldehyde group7
6232206963Ketonecarbonyl carbon is not bound to H8
6232207024Ketosesmonosaccharides with a ketone group9
6232255152IsomersHave the same molecular formula but different structures10
6232276981Constitutional isomersdiffer in the order of attachments of atoms11
6232279863Stereoisomersatoms are connected in the same order but differ in spatial arrangments12
6232321319EnantiomersNonsuperimposable mirror images13
6232338161DiastereoisomersIsomers that are not mirror images14
6232350691Epimersdiffer at one of several asymmetric carbon atoms15
6232377228Glycosyltransferasescatalyze glycosidic bond formation via condensation reaction16
6232385627Glycosidea sugar with a glycosidic bonds17
6232393438Amyloseunbranched starch consisting of glucose in alpha-1,4-glycosidic linkages18
6232399994Amylopectinbranched starch consisting of glucose with alpha-1,4-glycosidic linkages and branching alpha-1,6-glycosidic linkages every ~30 units19
6232408652Cellulosea polysaccharide of gluose that is the major structural components of plants (cell wall)20
6232413396beta-1,4-glycosidic linkagesconnect glucose residues21
6232418356beta configurationenables cellulose to form fibrils formed by repeating intrachain hydrogen bonds22
6232419639Glycoproteinsa protein with a covalently attached carbohydrate group; protein > carbohydrate23
6232421153Three classes of glycoproteinsglycoproteins, proteoglycans, mucins (mucoproteins)24
6232422928proteoglycanscarbohydrate > protein25
6232425564Mucins (mucoproteins)carbohydrate > protein26
6232435255Glycoprotein functionscell membrane components, participate in cell adhesion, soluble forms are important blood serum components27
6232437024glycosylationproteins undergo ______ at asparagine (N-linkage), and serine or threonine (O-linkage) side chains28
6232439513ProteoglycanThese are glycoproteins in which a protein is attached to glycosaminoglycan polysaccharides; glycosaminoglycan can represent up to 95% of mass29
6232444319Proteoglycan functionsdetermined by glycosaminoglycan component; lubricants and structural ocmponents and connective tissue, cell adhesion, bind factors that regulate cell proliferation30
6232459271Mucinsglycoproteins in which the protein component is extensively glycosylated at serine and threonine residues by N-acetylgalactosamine; The protein component has a variable number of tandem repeats (VNTR) region containing Ser and Thr residues31
6232474753Mucin functionslubricants, for instance in saliva; protective barriers (stomach acid, bacteria); hydrating underlying cells; roles in fertilization and immune response32

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