Bio Sci 93 Midterm 2 Exam Questions
and Answers
Which iiis iithe iicorrect iiorder iifor iithe iihydrolysis iiof iisucrose iireaction?
1. ii(sucrase-sucrose-H2O)
2. ii(sucrase) ii+ ii(sucrose) ii+ ii(H2O)
3. ii(sucrase) ii+ ii(glucose) ii+ ii(fructose)
A.) ii3, ii2, ii1
B.) ii1, ii2, ii3
C.) ii2, ii3, ii1
D.) ii2, ii1, ii3 ii- iiCorrect iiAnswers ii-D.) ii2, ii1, ii3
The iihydrolysis iiof iisucrose iiis iia ii_________________ iireaction
A.) iiredox
B.) iimultimeric
C.) iiexergonic
D.) iiendergonic ii- iiCorrect iiAnswers ii-C.) iiExergonic
A iicompetitive iiinhibitor iiusually iiblocks iithe iiaccess iiof iithe iisubstrate iito iithe iiactive iisite
iiof iithe iienzyme.
A.) iiTrue ii
B.) iiFalse ii- iiCorrect iiAnswers ii-B.) iiFalse
Energy iicoupling iiis iia iimechanism iiin iiwhich iithe iicells iiuse ii__________ iito iidrive iimost
iiendergonic iireactions.
A.) iiNADH
B.) iiglucose
C.) iiATP
D.) iienzymes ii- iiCorrect iiAnswers ii-C.) iiATP
Acidification iiof iithe iiintermembrane iispace iiof iimitochondria iiwill iireduce iithe iiavailability
iiof iiH+ iifor iichemiosmosis
, A.) iiTrue ii
B.) iiFalse ii- iiCorrect iiAnswers ii-B.) iiFalse
Most iiCO2 iifrom iicellular iirespiration iiis iireleased iiduring:
A.) iiglycolysis
B.) iielectron iitransport
C.) iilactic iiacid iifermentation
D.) iicitric iiacid iicycle ii- iiCorrect iiAnswers ii-D.) iiCitric iiacid iicycle
Which iiof iithe iifollowing iistatements iiis iiCORRECT?
A.) iiChlorophyll iiis iifound iiin iithe iistroma iiof iithe iichloroplast.
B.)When iichlorophyll iiabsorbs iia iiphoton iiof iilight, iithe iienergy iimay iibe iireleased iias iia
iiphoton iiof iired iilight iithrough iia iiprocess iiknown iias iifluorescence.
C.)Chlorophyll iiis iiabundant iiin iiall iimembranes iiof iiplant iicells.
D.)Chlorophyll iiis iithe iionly iilight-absorbing iipigment iifound iiin iiplants.
E.) iiPlants iiare iigreen iibecause iichlorophyll iiemits iigreen iilight iiby iifluorescence. ii-
iiCorrect iiAnswers ii-B.) iiWhen iichlorophyll iiabsorbs iia iiphoton iiof iilight, iithe iienergy iimay
iibe iireleased iias iia iiphoton iiof iired iilight iithrough iia iiprocess iiknown iias iifluorescence.
Which iiof iithe iifollowing iicompounds iiare iioxidized iiby iithe iilight iireactions iiof
iiphotosynthesis?
A.) iioxygen
B.) iisugar ii(C6H12O6)
C.) iiNADP+
D.) iicarbon iidioxide iiand iiwater
E.) iiwater ii- iiCorrect iiAnswers ii-E.) iiWater
Which iiof iithe iifollowing iiare iitrans-membrane iicomplexes iiin iiphotosynthetic iielectron
iitransport?
A.) iiphotosystem iiII, iicytochrome iicomplex, iiphotosystem iiI
b.) iiplastoquinone ii(Pq), iiplastocyanin ii(Pc), iiferredoxin ii(Fd)
C.) iistroma, iithylakoid iilumen
D.) iiouter iimembrane, iiinner iimembrane, iithylakoid iimembrane
E.) iiCO2, iiglyceraldehyde-3-phosphate, iiand iisucrose ii- iiCorrect iiAnswers ii-A.)
iiPhotosystem iiII, iicytochrome iicomplex, iiPhotosystem iiI
You iiare iia iiscientist iitrying iito iiidentify iinew iiways iito iimake iianimals iiglow iidifferent
iicolors. iiAs iipart iiof iiyour iistudies iiyou iiidentify iia iiphosphorescent iired iistrain iiof
iibacteria. iiYou iiheat-killed iithis iiphosphorescent iired iistrain iiof iibacteria iiand iimix iiit iiwith
iia iiliving, iicolorless iistrain. iiFurther iiobservations iiof iithe iimixture iishow iithat iisome iiof
iithe iiliving iicells iiare iinow iired. iiWhich iiof iithe iifollowing iiobservations iiwould iiprovide
iithe iibest iievidence iithat iired iicolor iiis iia iiheritable iitrait?
and Answers
Which iiis iithe iicorrect iiorder iifor iithe iihydrolysis iiof iisucrose iireaction?
1. ii(sucrase-sucrose-H2O)
2. ii(sucrase) ii+ ii(sucrose) ii+ ii(H2O)
3. ii(sucrase) ii+ ii(glucose) ii+ ii(fructose)
A.) ii3, ii2, ii1
B.) ii1, ii2, ii3
C.) ii2, ii3, ii1
D.) ii2, ii1, ii3 ii- iiCorrect iiAnswers ii-D.) ii2, ii1, ii3
The iihydrolysis iiof iisucrose iiis iia ii_________________ iireaction
A.) iiredox
B.) iimultimeric
C.) iiexergonic
D.) iiendergonic ii- iiCorrect iiAnswers ii-C.) iiExergonic
A iicompetitive iiinhibitor iiusually iiblocks iithe iiaccess iiof iithe iisubstrate iito iithe iiactive iisite
iiof iithe iienzyme.
A.) iiTrue ii
B.) iiFalse ii- iiCorrect iiAnswers ii-B.) iiFalse
Energy iicoupling iiis iia iimechanism iiin iiwhich iithe iicells iiuse ii__________ iito iidrive iimost
iiendergonic iireactions.
A.) iiNADH
B.) iiglucose
C.) iiATP
D.) iienzymes ii- iiCorrect iiAnswers ii-C.) iiATP
Acidification iiof iithe iiintermembrane iispace iiof iimitochondria iiwill iireduce iithe iiavailability
iiof iiH+ iifor iichemiosmosis
, A.) iiTrue ii
B.) iiFalse ii- iiCorrect iiAnswers ii-B.) iiFalse
Most iiCO2 iifrom iicellular iirespiration iiis iireleased iiduring:
A.) iiglycolysis
B.) iielectron iitransport
C.) iilactic iiacid iifermentation
D.) iicitric iiacid iicycle ii- iiCorrect iiAnswers ii-D.) iiCitric iiacid iicycle
Which iiof iithe iifollowing iistatements iiis iiCORRECT?
A.) iiChlorophyll iiis iifound iiin iithe iistroma iiof iithe iichloroplast.
B.)When iichlorophyll iiabsorbs iia iiphoton iiof iilight, iithe iienergy iimay iibe iireleased iias iia
iiphoton iiof iired iilight iithrough iia iiprocess iiknown iias iifluorescence.
C.)Chlorophyll iiis iiabundant iiin iiall iimembranes iiof iiplant iicells.
D.)Chlorophyll iiis iithe iionly iilight-absorbing iipigment iifound iiin iiplants.
E.) iiPlants iiare iigreen iibecause iichlorophyll iiemits iigreen iilight iiby iifluorescence. ii-
iiCorrect iiAnswers ii-B.) iiWhen iichlorophyll iiabsorbs iia iiphoton iiof iilight, iithe iienergy iimay
iibe iireleased iias iia iiphoton iiof iired iilight iithrough iia iiprocess iiknown iias iifluorescence.
Which iiof iithe iifollowing iicompounds iiare iioxidized iiby iithe iilight iireactions iiof
iiphotosynthesis?
A.) iioxygen
B.) iisugar ii(C6H12O6)
C.) iiNADP+
D.) iicarbon iidioxide iiand iiwater
E.) iiwater ii- iiCorrect iiAnswers ii-E.) iiWater
Which iiof iithe iifollowing iiare iitrans-membrane iicomplexes iiin iiphotosynthetic iielectron
iitransport?
A.) iiphotosystem iiII, iicytochrome iicomplex, iiphotosystem iiI
b.) iiplastoquinone ii(Pq), iiplastocyanin ii(Pc), iiferredoxin ii(Fd)
C.) iistroma, iithylakoid iilumen
D.) iiouter iimembrane, iiinner iimembrane, iithylakoid iimembrane
E.) iiCO2, iiglyceraldehyde-3-phosphate, iiand iisucrose ii- iiCorrect iiAnswers ii-A.)
iiPhotosystem iiII, iicytochrome iicomplex, iiPhotosystem iiI
You iiare iia iiscientist iitrying iito iiidentify iinew iiways iito iimake iianimals iiglow iidifferent
iicolors. iiAs iipart iiof iiyour iistudies iiyou iiidentify iia iiphosphorescent iired iistrain iiof
iibacteria. iiYou iiheat-killed iithis iiphosphorescent iired iistrain iiof iibacteria iiand iimix iiit iiwith
iia iiliving, iicolorless iistrain. iiFurther iiobservations iiof iithe iimixture iishow iithat iisome iiof
iithe iiliving iicells iiare iinow iired. iiWhich iiof iithe iifollowing iiobservations iiwould iiprovide
iithe iibest iievidence iithat iired iicolor iiis iia iiheritable iitrait?
