IB 150 FINAL EXAM QUESTIONS AND CORRECT
Which cof cthe cfollowing cmolecules cwould cyou cleast cexpect cto cbe cproduced cinside ca cmitochond
cANS✔✔Glucose
Most cof clife's cendergonic creactions care cpowered cby cthe chydrolysis cof cATP cto cADP cand cPi. cIn
cof cATP, cliving corganisms ccontinually cproduce cmore cATP cby ccombining cthe cinorganic cphospha
cwhich cis ca cvery cendergonic creaction. cWhere cdo corganisms cget cthe cenergy cfrom cin corder cto c
cmolecules? c- cCORRECT cANS✔✔The cenergy cin ccarbon-hydrogen cbonds cin corganic cmolecules
Which cof cthe cfollowing care csteps cduring cCellular cRespiration cthat care cdirectly cproducing cATP?
cPayoff cPhase cof cGlycolysis
Kreb's cCycle c(also ccalled cthe cCitric cAcid cCycle)
ATP csynthase
Why cdo cyou crequire coxygen? c- cCORRECT cANS✔✔Oxygen cis cthe cfinal celectron cacceptor cin ct
cclear cthe cway cfor cmore celectrons cto crun cdown cthe cETC.
Where cdid cthe celectrons coriginally ccome cfrom cin ccellular crespiration cthat cultimately cend cup cin
cTrace cthem cas cfar cback cas cyou ccan. c- cCORRECT cANS✔✔C-H cbond cof cglucose
Which cof cthe cfollowing coptions cis cNOT cpart cof cthe cexplanation cwhy canaerobic ccellular crespira
caerobic ccellular crespiration? c- cCORRECT cANS✔✔Lack cof coxygen creduces cthe cavailable cATP
cglucose cproduced cby cglycolysis.
Citric cacid ccycle c- cCORRECT cANS✔✔complete cdisintegration cof cthe corganic cmolecule, cwith ca
celectrons ccarried coff cand conly cCO2 cas cby-product
pyruvate cprocessing c- cCORRECT cANS✔✔first cmovement cof cmetabolites cinto cmitochondria
overall caerobic ccellular crespiration creactions c- cCORRECT cANS✔✔converts cenergy cfrom chigh-e
cfrom ccarbon-hydrogen cbonds cin cglucose cinto cATP
ETC c- cCORRECT cANS✔✔uses cchemical cpotential cenergy cfrom chigh-energy celectrons cto cesta
, Amphibians csuch cas cfrogs cbreathe cboth cwith ctheir clungs cand cvia cgas cexchange cthrough ctheir
cbe cable cto cderive ca chigher cproportion c(fraction) cof cits coxygen cdemand cfrom cgas cexchange cth
cto cvia cits clungs? cHint: cconsider cwhich cconcept cyou cneed cto cconsider cto canswer cthis cquestion
cpoison cdart cfrog c(one cof cthe csmallest cfrogs cin cthe cworld) c
SA/V c- cdetermines cthe canswer
There care camphibians cthat care ceven clarger cthan cbullfrogs. cWhich cof cthe cfollowing ccould cexpla
camphibium ccould cobtain ca csufficient crate cof cdiffusion cof crespiratory cgases? c- cCORRECT cANS
cor cribbon cshaped)
larger cinternal csurface carea cof cthe clungs
reduced cmetabolic crate c(reduced crate cof ccellular crespiration)
Respiratory csurfaces cmust calways cstay cmoist c(be ccovered cby ca cvery cthin cfilm cof cwater). cDiffu
cexceedingly cslow.
Which cvariable cof cFick's cLaw cis cmost clikely cresponsible cfor cthis? c- cCORRECT cANS✔✔k
When cthe cinsect cbecomes cactive cand cits cmuscle ccells chave ca cgreater cdemand cfor coxygen cas
cpulls cout cof cthe ctracheoles cand cinto cthe cmuscle ccells cagain c(see cfigure cabove). cWhat cmight c
cinsect? c- cCORRECT cANS✔✔Decreases cthe cpart cof cthe cdistance cfilled cwith ca cmedium cthat ch
cto cincrease cthe cdiffusion crate cat ctimes cof chigh cmetabolic cdemand cfor coxygen.
There care cmany cdifferent cspecies cof cmarine cannelid cworm. cSome care cvery csmall, conly ca cfew
csuch cas clugworms, care cmuch clarger. cLugworms clive cin cU-shaped cburrows cthat cthey cbuild cin c
cmarine cintertidal czones. c
ignoring csurface carea cof cgills, cwhich cof cthe cfollowing cvariables cDECREASES cas ca clugworm cg
cANS✔✔SA/V
(SA cgrows cslower cthan cvolume, cso cthe cratio cwould cdecrease)
There care cmany cdifferent cspecies cof cmarine cannelid cworm. cSome care cvery csmall, conly ca cfew
csuch cas clugworms, care cmuch clarger. cLugworms clive cin cU-shaped cburrows cthat cthey cbuild cin c
cmarine cintertidal czones. c
Which cvariable cdoes cpresence cof cgills cmost caffect cin clugworms? c- cCORRECT cANS✔✔A
The cFick's cLaw cequation c- cCORRECT cANS✔✔k*A*(P2-P1)/D
Models cthe crate cof cdiffusion
second claw cof cthermodynamics c- cCORRECT cANS✔✔shows cthat cthe cprocess cof cdiffusion cis ce
Metabolic crate cof corganism c- cCORRECT cANS✔✔determines c(in cpart) cP1
each cof cthe c4 cvariables cin cFick's cLaw c- cCORRECT cANS✔✔affects cthe clikelihood cof crespirato
cfrom cpoint cA cto cpoint cB cvia crandom cmotions
Surface carea cto cvolume cratio c(SA/V) c- cCORRECT cANS✔✔explains cthe crelationship cbetween c
cof cdemand cfor crespiratory cgases
Why cdid cwe chave cto cdivide cthe centire clength cthat can coxygen cmolecule chas cto ctraverse cvia cd
catmosphere cto cinside cthe cmitochondria cof ca cbody ccell cinto ctwo cdistances, cand ccalculate cthe c
cthe cdistance cX-Y cand cY-Z? c- cCORRECT cANS✔✔k cdiffers cthe ctwo cdistances
Which cof cthe cfollowing cmolecules cwould cyou cleast cexpect cto cbe cproduced cinside ca cmitochond
cANS✔✔Glucose
Most cof clife's cendergonic creactions care cpowered cby cthe chydrolysis cof cATP cto cADP cand cPi. cIn
cof cATP, cliving corganisms ccontinually cproduce cmore cATP cby ccombining cthe cinorganic cphospha
cwhich cis ca cvery cendergonic creaction. cWhere cdo corganisms cget cthe cenergy cfrom cin corder cto c
cmolecules? c- cCORRECT cANS✔✔The cenergy cin ccarbon-hydrogen cbonds cin corganic cmolecules
Which cof cthe cfollowing care csteps cduring cCellular cRespiration cthat care cdirectly cproducing cATP?
cPayoff cPhase cof cGlycolysis
Kreb's cCycle c(also ccalled cthe cCitric cAcid cCycle)
ATP csynthase
Why cdo cyou crequire coxygen? c- cCORRECT cANS✔✔Oxygen cis cthe cfinal celectron cacceptor cin ct
cclear cthe cway cfor cmore celectrons cto crun cdown cthe cETC.
Where cdid cthe celectrons coriginally ccome cfrom cin ccellular crespiration cthat cultimately cend cup cin
cTrace cthem cas cfar cback cas cyou ccan. c- cCORRECT cANS✔✔C-H cbond cof cglucose
Which cof cthe cfollowing coptions cis cNOT cpart cof cthe cexplanation cwhy canaerobic ccellular crespira
caerobic ccellular crespiration? c- cCORRECT cANS✔✔Lack cof coxygen creduces cthe cavailable cATP
cglucose cproduced cby cglycolysis.
Citric cacid ccycle c- cCORRECT cANS✔✔complete cdisintegration cof cthe corganic cmolecule, cwith ca
celectrons ccarried coff cand conly cCO2 cas cby-product
pyruvate cprocessing c- cCORRECT cANS✔✔first cmovement cof cmetabolites cinto cmitochondria
overall caerobic ccellular crespiration creactions c- cCORRECT cANS✔✔converts cenergy cfrom chigh-e
cfrom ccarbon-hydrogen cbonds cin cglucose cinto cATP
ETC c- cCORRECT cANS✔✔uses cchemical cpotential cenergy cfrom chigh-energy celectrons cto cesta
, Amphibians csuch cas cfrogs cbreathe cboth cwith ctheir clungs cand cvia cgas cexchange cthrough ctheir
cbe cable cto cderive ca chigher cproportion c(fraction) cof cits coxygen cdemand cfrom cgas cexchange cth
cto cvia cits clungs? cHint: cconsider cwhich cconcept cyou cneed cto cconsider cto canswer cthis cquestion
cpoison cdart cfrog c(one cof cthe csmallest cfrogs cin cthe cworld) c
SA/V c- cdetermines cthe canswer
There care camphibians cthat care ceven clarger cthan cbullfrogs. cWhich cof cthe cfollowing ccould cexpla
camphibium ccould cobtain ca csufficient crate cof cdiffusion cof crespiratory cgases? c- cCORRECT cANS
cor cribbon cshaped)
larger cinternal csurface carea cof cthe clungs
reduced cmetabolic crate c(reduced crate cof ccellular crespiration)
Respiratory csurfaces cmust calways cstay cmoist c(be ccovered cby ca cvery cthin cfilm cof cwater). cDiffu
cexceedingly cslow.
Which cvariable cof cFick's cLaw cis cmost clikely cresponsible cfor cthis? c- cCORRECT cANS✔✔k
When cthe cinsect cbecomes cactive cand cits cmuscle ccells chave ca cgreater cdemand cfor coxygen cas
cpulls cout cof cthe ctracheoles cand cinto cthe cmuscle ccells cagain c(see cfigure cabove). cWhat cmight c
cinsect? c- cCORRECT cANS✔✔Decreases cthe cpart cof cthe cdistance cfilled cwith ca cmedium cthat ch
cto cincrease cthe cdiffusion crate cat ctimes cof chigh cmetabolic cdemand cfor coxygen.
There care cmany cdifferent cspecies cof cmarine cannelid cworm. cSome care cvery csmall, conly ca cfew
csuch cas clugworms, care cmuch clarger. cLugworms clive cin cU-shaped cburrows cthat cthey cbuild cin c
cmarine cintertidal czones. c
ignoring csurface carea cof cgills, cwhich cof cthe cfollowing cvariables cDECREASES cas ca clugworm cg
cANS✔✔SA/V
(SA cgrows cslower cthan cvolume, cso cthe cratio cwould cdecrease)
There care cmany cdifferent cspecies cof cmarine cannelid cworm. cSome care cvery csmall, conly ca cfew
csuch cas clugworms, care cmuch clarger. cLugworms clive cin cU-shaped cburrows cthat cthey cbuild cin c
cmarine cintertidal czones. c
Which cvariable cdoes cpresence cof cgills cmost caffect cin clugworms? c- cCORRECT cANS✔✔A
The cFick's cLaw cequation c- cCORRECT cANS✔✔k*A*(P2-P1)/D
Models cthe crate cof cdiffusion
second claw cof cthermodynamics c- cCORRECT cANS✔✔shows cthat cthe cprocess cof cdiffusion cis ce
Metabolic crate cof corganism c- cCORRECT cANS✔✔determines c(in cpart) cP1
each cof cthe c4 cvariables cin cFick's cLaw c- cCORRECT cANS✔✔affects cthe clikelihood cof crespirato
cfrom cpoint cA cto cpoint cB cvia crandom cmotions
Surface carea cto cvolume cratio c(SA/V) c- cCORRECT cANS✔✔explains cthe crelationship cbetween c
cof cdemand cfor crespiratory cgases
Why cdid cwe chave cto cdivide cthe centire clength cthat can coxygen cmolecule chas cto ctraverse cvia cd
catmosphere cto cinside cthe cmitochondria cof ca cbody ccell cinto ctwo cdistances, cand ccalculate cthe c
cthe cdistance cX-Y cand cY-Z? c- cCORRECT cANS✔✔k cdiffers cthe ctwo cdistances
