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Biochemistry Flashcards

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8721622272precursors for the formation of biomoleculesWater, CO2, ammonium (NH4+), nitrate (NO3-), dinitrogen (N2)0
8721622273MetabolitesSimple organic compounds that are intermediates in energy transformation and in the biosynthesis of building blocks (ex glucose, pyruvate, citrate)1
8721622274Building blocksAmino acids, sugars, nucleotides, fatty acids, glycerol2
8721622275MacromoleculesCovalent linkage of building blocks produces molecules like proteins, polysaccharides, polynucleotides, and lipids3
8721622276Supramolecular complexesVarious members of one or more classes of macromolecules come together to form specific assemblies that serve important cellular functions (ex ribosomes, chromosomes)4
8721622277Noncovalent bondsHydrogen bonds, van der waals, ionic, hydrophobic5
8721915266LigandA molecule or atom that binds specifically to another molecule6
8721985857MetabolismThe ordered reaction pathways by which cellular chemistry proceeds and biological energy transformations are accomplished7
8761456840Isolated systemA system that can exchange neither energy nor matter with its surroundings8
8761456841closed systemMay Exchange energy but not matter with the surroundings9
8761456842Open systemMay Exchange matter, energy, or both with the surroundings10
8822747558ZwitterionHas a positive and negative charge ex. AA in pH 7, backbone is charged11
8823537286oligopeptide12-20 AA12
8823537287Polypeptide20+ amino acids, used interchangeably with the word protein13
8823537288monomeric proteinOne polypeptide chain14
8823537289multimeric proteinMore than one poly peptide chain15
8823537290HomomultimericMultimeric protein with only one kind of polypeptide chain16
8823537291HeteromultimericMultimeric protein with several different kinds of polypeptide chains17
8872274429Polyamino acidsPolymers in which all the AA are identical (some spontaneously form alpha helices some do not, others depend on the enviro)18
8906047354Intrinsically unstructured proteinNeeded for basic cellular functions but have no defined structure19
8906056914One to many bindingIup region/protein can change its shape to bind to different things20
9112457470GlycoconjucatesCarbohydrates that are covalently linked to other molecules21
9112457471GlycosidesPyramids and furanose forms of monosaccharides reacts w alcohols via dehydration synthesis to form these22
9112457472Glycosidic bondBond btw anomeric C and O of the alcohol23

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