OCR A LEVEL PE - YEAR 1

OCR A LEVEL PE - YEAR 1

Abductioncf-cfanswer--Movementcfofcfthecflimbscfawaycffromcfthecfmidlinecfofcfthecfbody.

Accelerationcf-cfanswer--Thecfratecfofcfchangecfincfvelocity.cfAccelerationcf(m/s//
s)cf=cf(finalcfvelocitycf-cfinitialcfvelocity)/time.

Actin-MyosincfFilamentscf-cfanswer--
Proteinscfwhichcfformcfthecfcontractilecfunitscfofcfskeletalcfmuscle.

ActioncfPotentialcf-cfanswer--
Positivecfelectricalcfchargecfinsidecfthecfnervecfandcfmusclecfcellscfwhichcfconductscfthecfne
rvecfimpulsescfdowncfthecfneuroncfandcfintocfthecfmusclecffibre.

ActivecfRecoverycf-cfanswer--Low-
intensitycfactivitycfpostcfexercisecftocfmaintaincfelevatedcfheartcfandcfbreathingcfrates.

Adaptationcf-cfanswer--Acfphysiologicalcfchangecfincfresponsecftocftraining.

Adductioncf-cfanswer--Movementcfofcfthecflimbscftowardscfthecfmidlinecfofcfthecfbody.

AerobiccfCapacitycf-cfanswer--
Thecfabilitycfofcfthecfbodycftocfinspire,cftransportcfandcfutilisecfoxygencftocfperformcfsustaine
dcfperiodscfofcfaerobiccfactivity.

AerobiccfWorkcf-cfanswer--Lowcfintensity,cflong-
durationcfexercisecfincfthecfpresencecfofcfoxygen.

Aggressioncf-cfanswer--Intentcftocfharmcfoutsidecfthecflawscfofcfthecfsportscfevent.

Agonistcf-cfanswer--
Acfmusclecfresponsiblecfforcfcreatingcfmovementcfatcfacfjoint.cfAlsocfknowncfascfthecfprimecf
mover.

AircfResistancecf-cfanswer--Thecfforcecfthatcfopposescfthecfmotioncfthroughcfthecfair.

All-or-NonecfLawcf-cfanswer--
Dependingcfoncfwhethercfthecfstimuluscfiscfabovecfacfthreshold,cfallcfmusclecffibrescfwillcfgiv
ecfacfcompletecfcontractioncforcfnocfcontractioncfatcfall.

Alveolicf-cfanswer--
Clusterscfofcftinycfaircfsacscfcoveredcfincfacfdensecfnetworkcfofcfcapillariescfwhichcftogethercf
servecfascfthecfexternalcfsitecfforcfgaseouscfexchange.

,Amateurcf-cfanswer--
Acfpersoncfwhocfcompetescfincfsportscfactivitiescfbutcfdoescfnotcfreceivecfmonetarycfrewardc
fforcfparticipating.



AnaboliccfSteroidscf-cfanswer--
Acfgroupcfofcfillegalcfsyntheticcfhormonescfresemblingcftestosteronecftocfpromotecfproteincf
synthesiscfforcfmusclecfgrowth,cfrecoverycfandcfrepair.

AnaerobiccfWorkcf-cfanswer--Highcfintensity,cfshort-
urationcfexercisecfincfthecfabsencecfofcfoxygen.

Antagonistcf-cfanswer--
Acfmusclecfthatcfopposescfthecfagonistcfprovidingcfacfresistancecfforcfco-
ordinatedcfmovement.

AntagonistcfMusclecfActioncf-cfanswer--
Pairedcfmusclecfaction.cfAscfthecfagonistcfmusclecfshortenscftocfcreatecfmovement,cfthecfan
tagonistcflengthenscftocfco-ordinatecfthecfaction.

Anxietycf-cfanswer--
Acfnegativecfemotionalcfstatecfthatcfiscfcloselycfassociatedcfwithcfarousal.cfItcfiscfexperiencin
gcfapprehensioncfandcfbeingcfawarecfofcfhighcfarousalcflinkedcftocfourcffearscfandcfworries.

Apartheidcf-cfanswer--
Acfrangecfofcfpoliciescfofcfracialcfsegregationcfundercfacfsystemcfofcflegislation.cfApartheidcfe
xistedcfincfSouthcfAfricacffromcf1948cftocf1994.cfUndercfapartheid,cfnon-
whitecfSouthcfAfricanscf(thecfvastcfmajoritycfofcfthecfpopulation)cfwerecfforcedcftocflivecfincfse
paratecfareascffromcfwhitescfandcfusecfseparatecfpubliccffacilities,cfandcfcontactcfbetweencft
hecftwocfgroupscfwascflimitedcfbycflaw.

Arousalcf-cfanswer--
Thecf'energisedcfstate'cforcfthecf'readinesscfforcfaction'cfthatcfmotivatescfuscftocfbehavecfincfa
cfparticularcfway.



Arteriolescf-cfanswer--
Bloodcfvesselscfcarryingcfoxygenatedcfbloodcffromcfthecfarteriescftocfthecfcapillarycfbeds,cfw
hichcfcancfvasodilatecfandcfvasoconstrictcftocfregulatecfbloodcfflow.

ArticularcfCartilagecf-cfanswer--
Smoothcftissuecfwhichcfcoverscfthecfsurfacecfofcfarticulatingcfbonescftocfabsorbcfshockcfand
cfallowcffriction-freecfmovement.



Assertioncf-cfanswer--Forcefulcfbehaviourcfwithincfthecflawscfofcfthecfevent.

Associationistcf-cfanswer--
Thecftermcfgivencftocfacfgroupcfofcftheoriescfrelatedcftocfconnectingcfstimuluscfandcfrespons
e.cfThesecftheoriescfarecfoftencfreferredcftocfascfS-
Rcftheories.cfAncfindividualcfiscfconditionedcfbycfstimulicfwhichcfarecf'connected'cforcf'bonde
d'cftocfappropriatecfresponses.

, Asthmacf-cfanswer--
Constrictioncfofcfthecfbronchialcfairwayscfandcfinflammationcfofcfthecfmucouscfmembranes,
cfwhichcfrestrictcfthecfairwayscfandcflimitcfbreathing.



Atherosclerosiscf-cfanswer--
Fattycfplaquecfdevelopmentcfincfthecfarterialcfwallscfprogressivelycfnarrowingcfthecflumencf
andcfhardeningcfthecfwalls.

Athleticismcf-cfanswer--
Acfcombinationcfofcfphysicalcfendeavour,cforcftryingcfhad,cfandcfmoralcfintegrity,cforcfbeingcf
honourable,cftruthfulcfandcfshowingcfgoodcfsportsmanship.

ATPcf(adenosinecftriphosphate)cf-cfanswer--
Chemicalcfenergycfstoredcfascfacfhighcfenergycfcompoundcfandcfusedcfascfthecfimmediatecf
sourcecfofcfenergycfforcfmusclecfcontraction.

AttentionalcfWastagecf-cfanswer--
Thecfperformer'scfconcentrationcfcancfbecfmisdirectedcftocfirrelevantcfcues.cfThiscfcancfda
magecfthecfeffectivenesscfofcftheircfperformancecfandcfwillcfparticularlycfaffectcfthecfwaycfacf
novicecflearns.

Attitudecf-cfanswer--
Acfpredispositioncftocfactcfincfacfparticularcfwaycftowardscfsomethingcforcfsomeonecfincfacfper
son'scfenvironment.

BalancedcfForcescf-cfanswer--
Thesecfoccurcfwhencftwocforcfmorecfforcescfactingcfoncfacfbodycfarecfequalcfincfsizecfandcfopp
ositecfincfdirection.cfNetcfforcecf=cf0,cfthecfbodycfwillcfremaincfatcfrestcforcfincfmotioncfwithcfcon
stantcfvelocity.

BallisticcfStretchingcf-cfanswer--
Swingingcforcfbouncingcfmovementscftocfcreatecfmomentumcftocfforcecfthecfjointcfthroughcfi
tscfextremecfrangecfofcfmotion.

BasalcfMetaboliccfRatecf(BMR)cf-cfanswer--
Thecfminimumcfamountcfofcfenergycfrequiredcftocfsustaincfessentialcfphysiologicalcffunctio
ncfatcfrest,cfwhichcfcancfaccountcfforcfascfmuchcfascf75%cfofcftotalcfenergycfexpenditure.

Bicarbonatecf-cfanswer--
Ancfalkalinecfwhichcfactscfascfacfbuffercftocfneutralisecfthecfrisecfincflacticcfacidcfassociatedcfw
ithcfintensecfanaerobiccfactivity.cfItscfusecfiscfknowscfascf'sodacfloading'.

BilateralcfTransfercf-cfanswer--Thecftransfercfofcflearningcffromcfonecflimbcftocfanother.

BloodcfDopingcf-cfanswer--
Ancfillegalcfmethodcfofcfincreasingcfredcfbloodcfcellcfcontentcfbycfinfusingcfbloodcfpriorcftocfco
mpetition.