BCH 361 Exam 1 Questions And Answers

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BCH 361 Exam 1 Questions And Answers

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Institution BCH 361

Course BCH 361

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BCH 361 Exam 1 Questions And Answers BCH 361 Exam 1 Questions And Answers BCH 361 Exam 1 Questions And Answers

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BCH 361 Exam 1 Questions And
Answers
___rconformationrisralwaysrfavoredrduertorlackrofrstericrclashesr-rCORRECTrrANSWER-
trans

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___risrbyrfarrthermostrabundantrelementr(byrmass)rafterrtakingroutrwater,rfollowedrbyr____r-
rCORRECTrrANSWER-C

N,O,H

3Drstructurer-rCORRECTrrANSWER-aminoracidrsequencerdeterminesr____

acidr-rCORRECTrrANSWER-protonrdonor

alpharCrandrCrbondrrotationr-rCORRECTrrANSWER-ψr(psi)

alpharhelixr-rCORRECTrrANSWER-backbonerfoldsrintorhelicalrconformationr
ψr=r-60
φr=r-70rtor-100

alpha-CrandrNrbondrrotationr-rCORRECTrrANSWER-φr(phi)

alpha-keratinrisrcomposedrofr-rCORRECTrrANSWER-tworright-
handedralpharhelicesr(stabilizedrbyrintra-strandrH-bond)rintertwinedrtorformrarleft-
handedrsuperrhelixrcalledrarcoiled-coil

alpha-keratinrisrfoundrinr-rCORRECTrrANSWER-
foundrinrwool,rhair,rnail,rhorn,rfeather,randrepithelialrcells

aminoracidrsequencerofrcollagenr-rCORRECTrrANSWER-everyrthirdrresiduerisrglyciner
prolinerandrhydroxyprolinerarerabundant

, AnfinsenrPrincipler-rCORRECTrrANSWER-
ther3Drconformationradoptedrbyrtherproteinrisrlargelyrdecidedrbyrtherproteinsraminoracidrseq
uence

AnfinsenrPrincipler-rdenaturedrproteinsr-rCORRECTrrANSWER-
canrretainractivityrafterrarfewrdaysratrpHr7.4

anti-parallelrbetarsheetsr-rCORRECTrrANSWER-
neighboringrstrandsrhaverdifferentrorientationr
(h-bondrlinesrarerparallel)

Atomicrcompositionrofrorganismsr-rmajorityrconsistsrofrfourrtypesrofratomsr-
rCORRECTrrANSWER-hydrogen,roxygen,rcarbon,rnitrogen

backbonerofrpeptidesr-rCORRECTrrANSWER-N,ralpha-
C,rCrfromreachraminoracidrtorformrlinearrchain

baser-rCORRECTrrANSWER-protonracceptor

Beta-sheetsr-rCORRECTrrANSWER-formedrbyradjacentrBeta-
strandsrlyingrnextrtoroneranotherrthroughrhydrogenrbondsr
siderchainsrarerplacedraboverorrbelowr
Φ=-70rtor-100
ψ=90rtor110

buffersr-rCORRECTrrANSWER-compoundsrwhoserpKarisrclosertordesiredrpH
stabilizerpHrbyrconvertingrconjugaterbasertorconjugateracidr(orrvicerversa)

c-terminusr-rCORRECTrrANSWER-freercarboxylrgroup

Carbohydrates,rlipids,rproteins,randrnucleicracidsr-rCORRECTrrANSWER-
moleculesrseenrinrallrorganisms

cellrmembraner-rCORRECTrrANSWER-
separatesrthercellrcontentsrfromrtheroutsiderworld;rcontentsrincluderorganellesr(heldrinrplac
erbyrthercytoskeleton)randrthercytosol

cellrwallr-rCORRECTrrANSWER-rigidrexteriorrlayerrofrplantrcells

centralrvacuoler-rCORRECTrrANSWER-membrane-enclosedrsacrinrplantrcells

Chloroplastr-rCORRECTrrANSWER-
Siterofrphotosynthesisrinrgreenrplantsrandralgae;rhasritsrownrDNA

collagenrbondingr-rCORRECTrrANSWER-hydrogenrbondrisrabsentrwithinrtherchainr
withinrallrthreerchains,rglycinercanrfitrinrtherinteriorrandrformrinterchainrhydrogenrbonds

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Number of pages: 6
Written in: 2024/2025
Type: Exam (elaborations)
Contains: Questions & answers

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