AQA GCSE BIOLOGY PAPER 1 -
REVISION QUESTIONS GRADE A+
COMPLETE EXAM QUESTIONS AND
100% VERIFIED ANSWERS (2026/2027)
PASS GUARANTEE
HowCisCtheCrealCsizeCofCaCmagnifiedCimageCcalculated?C-
CCORRECTCANSWERRealCsizeC=CImageCsizeC÷CTotalCmagnification.
WhatCisCaCeukaryoticCcell?C-
CCORRECTCANSWERACcellCwithCDNACinsideCaCmembraneCboundCnucleus.CProkaryoticCcellsCdoCnotC
haveCaCnucleus.
NameCtwoCdifferencesCbetweenCaCplantCcellCandCaCbacterialCcell?C-
CCORRECTCANSWERPlantCcellsChaveCaCnucleusC/CplantCcellsChaveCmitochondriaC/CplantCcellsChaveCc
hloroplastsC/CplantCcellsChaveCaCcelluloseCcellCwallCwhereasCbacteriaCdoCnotCcontainCanyCofCtheseCst
ructures.CBacteriaChaveCchromosomalCDNACnotCinCaCnucleusCandChaveCDNACplasmidsCwhereasCpla
ntCcellsCdoCnotCcontainCtheseCstructures.
HowCcanCtheCrateCofCdiffusionCbeCincreased?C-
CCORRECTCANSWERHigherCtemperature,CSteeperCconcentrationCgradient,CShorterCdiffusionCdista
nce
WhyCareCstemCcellsCusedCinCmedicine?C-
CCORRECTCANSWERTreatmentCwithCstemCcellsCmayCbeCableCtoChelpCconditionsCsuchCasCdiabetesCa
ndCparalysis.
WhatCisCtheClockCandCkeyCmodelCofCenzymeCaction?C-
CCORRECTCANSWERTheCactiveCsiteCofCanCenzymeCisCaCspecificCshape,CwhichCisCcomplimentaryCtoCit
sCsubstrateC-CtheyCfitCtogetherClikeCaClockCandCkeyCtoCformCanCenzyme-substrateCcomplex.
REVISION QUESTIONS GRADE A+
COMPLETE EXAM QUESTIONS AND
100% VERIFIED ANSWERS (2026/2027)
PASS GUARANTEE
HowCisCtheCrealCsizeCofCaCmagnifiedCimageCcalculated?C-
CCORRECTCANSWERRealCsizeC=CImageCsizeC÷CTotalCmagnification.
WhatCisCaCeukaryoticCcell?C-
CCORRECTCANSWERACcellCwithCDNACinsideCaCmembraneCboundCnucleus.CProkaryoticCcellsCdoCnotC
haveCaCnucleus.
NameCtwoCdifferencesCbetweenCaCplantCcellCandCaCbacterialCcell?C-
CCORRECTCANSWERPlantCcellsChaveCaCnucleusC/CplantCcellsChaveCmitochondriaC/CplantCcellsChaveCc
hloroplastsC/CplantCcellsChaveCaCcelluloseCcellCwallCwhereasCbacteriaCdoCnotCcontainCanyCofCtheseCst
ructures.CBacteriaChaveCchromosomalCDNACnotCinCaCnucleusCandChaveCDNACplasmidsCwhereasCpla
ntCcellsCdoCnotCcontainCtheseCstructures.
HowCcanCtheCrateCofCdiffusionCbeCincreased?C-
CCORRECTCANSWERHigherCtemperature,CSteeperCconcentrationCgradient,CShorterCdiffusionCdista
nce
WhyCareCstemCcellsCusedCinCmedicine?C-
CCORRECTCANSWERTreatmentCwithCstemCcellsCmayCbeCableCtoChelpCconditionsCsuchCasCdiabetesCa
ndCparalysis.
WhatCisCtheClockCandCkeyCmodelCofCenzymeCaction?C-
CCORRECTCANSWERTheCactiveCsiteCofCanCenzymeCisCaCspecificCshape,CwhichCisCcomplimentaryCtoCit
sCsubstrateC-CtheyCfitCtogetherClikeCaClockCandCkeyCtoCformCanCenzyme-substrateCcomplex.