questions and answers
updated 2026
ByBwhichBtwoBprocessesBdoesBglucoseBenterBcellsBinBtheBhumanBbody?B-
BAnswerBactiveBtransportBandBdiffusion
TheBstructureBinBaBcellBthatBcontrolsBtheBcell'sBactivitiesBisBcalledBtheB_________B-
BAnswerBnucleus
GiveBtwoBdifferencesBbetweenBplantBandBanimalBcells.B-BAnswerBAnyBofBtheB2
•plantBcellsBhaveBaBcellBwall,BanimalBcellsBdoBnot
plantBcellsBhaveBpermanentBvacuoles,BanimalBcellsBdoBnot
plantBcellsBhaveBchloroplasts,BanimalBcellsBdoBnot
NameBtheBtypeBofBcellBinBplantsBthatBcanBdifferentiateBintoBdifferentBtypesBofBcell.B-
BAnswerBMeristemBcellBorBmeristematicBcell.
DescribeBhowBaBspermBcellBisBadaptedBtoBitsBrole.
[4Bmarks]B-BAnswerBFourBmarkingBpointsBfrom:
roleBisBtoBfertiliseBanBegg
theBheadBhasBtheBnucleus,BwhichBcontainsBtheBmaleBgeneticBmaterial
, itBhasBaBtailBforBswimming
theBacrosomeBhasBenzymesBsoBthatBtheBspermBcanBpenetrateBtheBegg
itBisBpackedBwithBmitochondriaBtoBsupplyBtheBenergyBforBmovement
DescribeBtheBsimilaritiesBandBdifferencesBbetweenBtheBprocessesBofBdiffusionBandBos
mosis.
[4Bmarks]B-BAnswerBFourBmarkingBpointsBfrom:
allBgasesBandBliquidsBmoveBbyBdiffusion
onlyBwaterBmovesBbyBosmosis
moleculesBmoveBfromBhighBtoBlowBconcentrationBinBbothBprocesses
thisBmeansBmoleculesBmoveBdownBaBconcentrationBgradient
osmosisBmustBoccurBacrossBaBpartiallyBpermeableBmembrane
neitherBprocessBrequiresBenergy
CompareBtheBadvantagesBandBdisadvantagesBofBlightBandBelectronBmicroscopes.B-
BAnswerBelectronBmicroscopesBhaveBhigherBmagnification
electronBmicroscopesBhaveBhigherBresolution
scanningBelectronBmicroscopesBcanBbeBusedBtoBexamineBtheBsurfaceBstructureBofBcell
s/structures