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Samenvatting BIOCHEMIE (deel 2)

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Samenvatting BIOCHEMIE VAN DE INSPANNING JAAR gegeven door prof. CLARYS

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December 22, 2018
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Samenvatning Biochem envannden nspann ni



BIOCHEMIE



1 Inleiding
 gelanir jkenafBrrniennz jn:


Afkorting Volledige naam
ATP AdenBs netr fBsfaat
AMP AdenBs nemBnBfBsfaat
PPi PyrBfBsfaat
PCr FBsfBiocrearne
Pi InBrian siochenfBsfBr
LDH LaioctaatdehydrBienase
CK Crearnek nase
PC FBsfBryliocrearne
AK Adenylaat-k nase
IMP InBs nemBnBfBsfaat
NH4+ AmmBn umn/nammBn ak
PCK FBsfBryliocrearnek nase
HK HexBk nase
PFK1 FBsfBfruioctBk nase
PK Pyruvaatk nase
PYR Pyruvaatn/npyrBdru venzuur
MZ Melkzuur
ALAT alan neam nBtransferase



 gelanir jknBmntenweten:
o Verzurennvannsp erenn sne ienl jkneennBversiochBtnaannprBtBnen




2 Energetische substraten
o Versioch llendenb Biochem siochenprBiocessennhebbennATPnnBd inalsneneri eleveranioc er
 PrBbleem:nvBBrraadnaannATPn snbeperkt
 OplBss ni:nATPnwBrdtniehersyntherseerd
 Snelhe dnh ervann snbepalendnvBBrndentenleverennprestare
 Versioch llendenb Biochem siochenweiennBmnATPntenienereren
o DBBrntra n ninkunnenndezenbeïnvlBednwBrden




1

,Samenvatning Biochem envannden nspann ni


2.1 ATP
 HydrBlysenvannATPnlevertneneri enBp
o 1mBlnATPnlevertn7,3nkiocalnBp

 ATPnbestaatnu tn3nfBsfaatirBepenndewelkenverbBndennz jnndBBrn2nanhydr denb nd nien
o HydrBlysenvanndezenb nd niennsteltneneri envr j
 V ndtnplaatsntussenn2denenn3denBfn1stenenn2denfBsfaatirBep
 GevBlinvanndenhydrBlyse:nernwBrdtnAMPnennPP nievBrmd
 DezenPP nkannBpnhaarnbeurtnBBkniehydrBlyseerdnwBrden
o D tnlevertn2nmBleioculennP nBp

 VBBrnelkensBBrtnsp eriocBntraiocren snernhydrBlysenvannATPnnBd i
o D tnzBritnvBBrneneri enBmnaiocrne-nennmyBs nevezelsnBvernelkaarntenlatennil jden
 Hanitnsamennmetndenwerk ninvannhetnenzymnmyBs ne-ATP-ase

 Inndenioceln snernnBrmaalnmeernATPndannADPnaanwez i
o DezeniocBniocentrarenwBrdtnzBniBednmBiel jkniocBnstantniehBuden
 GevBrmdnADPnmBetnsnelnteruinwBrdennBmiezetnBmnvBldBendenATPntenvBBrz en
 InnmyBfbr llennz jnnern2nmeiochan smennd enh ervBBrn nstaan:
o V andenwerk ninvannPC
o V andenaiocrv te tnvannhetnenzymnadenylaat-k nase

 Adenylaat-k nasen snaanwez in nnhetniocytBsBl
o ZBritnh ernvBBrndenBmzetninvannADPn nnATPnv anvBliendenreaiocre:

ADP+ ADP AK ATP+ AMP



 DenievBrmdenAMPnspeeltneennbelanir jkenrBlnb jndenaiocrver ninvannanderen
enzymen
 EiochterneennirBBtndeelnh ervannwBrdtnBmiezetndankz jndendeam nase-reaiocre:

AMP+ H AMP deaminase IMP + NH 4



 DezenreaiocrenzBritnervBBrndatnnaneennhev ien nspann ninernsleiochtsneenn
beperktnensrji ninvannADPnennAMPn s
 g jndezenreaiocrenBntstaatnIMPnennNH4+
o NH4+nwBrdtnmeteennieprBtBneerd
 ZalnnaarndenleverniaannennwBrdtndaarnBmiezetntBtn
ureum
o IMPnwBrdtnBmiezetntBtnur nezuur
 T jdensndenherstelper BdenwBrdtnIMPnBBknheelntraain
Bmiezetn nnAMP
 Dezenreaiocren snBnBmkeerbaar
o D tnzBritnvBBrneennversiochu v ninnaarnreiochtsnvanndenBmkeerbaren
AK-reaiocre
 Resultaatnh ervan:nverm nder ninvanndenBpstapel ninvan
ADPnenneennbl jvendnhBienATP/ADP-rarB
 Wantn nd enndenhBeveelhe dnADPntenhBBinzBun
wBrdenn nndensp er,ndannzBundenATP-ase-
reaiocrenkunnennvertraien

 Inneennrustendensp ernwBrdtnBnieveern1nm l mBlnATPnpernkinsp erweefselnpernm nuutnverbru kt

2

, Samenvatning Biochem envannden nspann ni


o T jdensnmax malen nspann ninwBrdtnBnieveern4nm l mBlnATPnpernkinsp erweefselnpern
seiocBndenverbru kt
 HersynthesenvannATPn sndusnzeernbelanir jk

 g jnsp eriocBntraiocrenwBrdtndusnATPnverbru kt
o DBBrnversioch llendenprBiocessen:
 MyBs ne-ATP-asen(65ntBtn80%nvanndenATP)
 Na/K-ATP-asenpBmpnBmnmembraanpBtenraalntenherstellenn(10%nvanndenATP)
 Ca-ATP-asenBmnCa2+u tnhetniocytBsBlnennteruin nnhetnsariocBplasmarsiochnrerioculumnten
pBmpenn(20ntBtn30%nvanndenATP)
 H erdBBrnstBptnhetnverbru knvannATPnn etnmeteennnanhetnstBppennvannden
sp eriocBntraiocre

2.1.1 De basale ATP-concentratie
 HBeveelhe dnATPn nnnatnsp erweefselnsiochBmmeltntussenn4,5nenn6,7nm l mBl/kinsp erweefsel
 Ernz jnnwe n inversioch llenntussenndensp erirBepen
 Ernz jnnm n emenversioch llenntussenndensp ervezeltypes:
o HBierenwaardenn nnsnellensp ervezels

2.1.2 De ATP-concentratie tijdens inspanning
 DenATP-iocBniocentrarenkBmtnnBB tnlaierndann60%nvannden n rileniocBniocentrarentenl iien

2.1.3 Het ATP-herstel tijdens inspanning
 DBBrnhetnsnellenverbru knvannATPnenndenkle nen ntramusiocula renvBBrraadnaannATPnmBetndenhBeveelhe dn
ATPn nnfuniocrenvannhetnverbru knhersteldnwBrdenn
o Maarnd tn ntr ns eknhersteln snBnvBldBende
 DaarBmnmBetnernvBBrndenresynthesenvannATPneennberBepniedaannwBrdennBpn
ntermed aren:
 ReservesnaannPC
 GlyiocBlyse
 Ox darevenfBsfBryler ni

2.1.4 Het ATP-herstel tijdens recuperatie
 Hetnhersteln snafankel jknvannden ntens te tnvannden nspann ni
o Intensen nspann ni:nherstelnrelarefntraai
 15nm nutennnanden nspann nin n reelnATP-n veaunnBinsteedsnn etnbere kt
o Marien nspann ni:nherstelnrelarefnsnel
 Enkelenm nutennnanden nspann nin n reelnATP-n veaunbere kt

 EerstenbrBnnvannhersteln snhetnadenylaat-k nase-systeem
o Tenw jtennaanndenverhBBideniocBniocentraresnaannADPnennAMPnd enafnemen
 Gebeurtnb nnennden30nseiocBndennnanhetnbei nd iennvanneenn nspann ni




2.2 Fosforylcreatine (PC)
 FBsfBryliocrearnen snsameniesteldnu t:




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