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m
Multiple Choice Questions
m m
1. Cellular m foundations
Pages:m3-4m Difficulty:m 1 Ans:mC
Inmambacterial mcell, mthemDNAmisminmthe:
A) cell menvelope.
B) cell mmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellular m foundations
Page:m 4 Difficulty:m 1 Ans:m E
Ammajor mchangemoccurring min mthem evolutionmofmeukaryotesmfrommprokaryotesmwasmthemdev
A) DNA.
B) photosyntheticm capability.
C) plasmammembranes.
D) ribosomes.
E) themnucleus.
3. Cellular m foundations
Page:m 4 Difficulty:m 1 Ans:m B
Inmeukaryotes,mthemnucleusmismenclosedmby mam doublemmembranemcalledmthe:
A) cell mmembrane.
B) nuclear menvelope. @theb
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellular m foundations
Page:m4 Difficulty:m 1 Ans:mC
Themdimensionsm ofmliving mcellsmaremlimited,m onm them lower mend m bymthem minimumm num ber m
esmnecessarymformfunction,mandm onm them upper mend m bym themratem ofm diffusion m ofm solutesm su
Exceptmform highlym elongatedmcells,mtheym usuallym havemlengthsmandm diametersminm them range
A) 0.1mµmmtom 10m µm.
B) 0.3mµmmtom 30m µm.
C) 0.3mµmmtom 100 mµm.
D) 1mµmmtom100m µm.
,2 Chapterm 1 m m The m Foundationsm
ry
5. Cellular m foundations
Page:m 5 Difficulty:m 2 Ans:m B
Thembacteriumm E.m coli mrequiresmsimplem organicmmoleculesmformgrowth mandm energy—itmism
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
6. Cellular m foundations
Page:m 10 Difficulty:m 2 Ans:m B
Whichmonemofmthemfollowing mhasmthemcellular mcomponentsmarrangedminmorder mofm increasin
A) Aminomacidm<mproteinm<m mitochondrionm<mribosome
B) Aminomacidm<mproteinm<mribosomem<mmitochondrion
C) Aminomacidm<mribosomem<mproteinm<mmitochondrion
D) Protein m<m amino macidm <m mitochondrion m<mribosome
E) Proteinm <mribosomem<m mitochondrion m<maminomacid
7. Cellular m foundations
Page:m 11 Difficulty:m 2 Ans:m A
Themthree-
dimensional m structurem ofm macrom oleculesmismformedm andm maintainedm primarilym through m
nteractions.m Whichm onem ofmthemfollowing mism not mconsideredmam noncovalentminteraction?
A) carbon-carbonm bonds
B) hydrogenm bonds
C) hydrophobicminteractions
D) ionicminteractions
E) vanmderm Waalsminteractions
8. Chemicalmfoundations
Page:m 12 Difficulty:m 2 Ans:m E
Whichmonem ofm themfollowing mism not mamong m themfourm mostmabundantmelementsminmliving m o
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
E) Phosphorus
9. Chemicalmfoundations
Page:m 13 Difficulty:m 1 Ans:m B
Themfourmcovalentmbondsminm methanem(CH m4)maremarrangedm around mcarbonm tomgivem whichm
lowing mgeometries?
, Chapterm 1m m Them Foundationsm of m Biochemist
ry
10. Chemicalmfoundations
Page:m 14 Difficulty:m 1 Ans:m B
Whatmfunctional mgroupsmarempresentmon mthismmolecule?
A) ether mandmaldehyde
B) hydroxylm andm aldehyde
C) hydroxyl mandmcarboxylic macid
D) hydroxylm andm ester
E) hydroxylm andm ketone
11. Chemicalmfoundations
Page:m 16 Difficulty:m 1 Ans:m D
Themmacromoleculesmthatmservemin mthemstoragem andmtransmissionmofmgeneticminformation m
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic macids.
E) proteins.
12. Chemicalmfoundations
Page:m 17 Difficulty:m 1 Ans:m D
Stereoisomers mthatmaremnonsuperimposablemmirror mimagesm ofmeachmother m aremknownmas:
A) anomers.
B) cis-trans misomers.
C) diastereoisomers.
D) enantiomers.
E) geometricm isomers.
13. Chemicalmfoundations
Page:m 20 Difficulty:m 3 Ans:m E
Themenzymemfumarasemcatalyzesmthe m reversiblem hydrationm ofmfumaricmacid mto ml-
malate,m butmitm willm notmcatalyzemthe mhydrationmof mmaleic macid, mthemcismisomer mof mfumar
smanmexamplemof:
A) biological mactivity.
B) chiral mactivity.
C) racemization.
D) stereoisomerization.
E) stereospecificity.
m
Multiple Choice Questions
m m
1. Cellular m foundations
Pages:m3-4m Difficulty:m 1 Ans:mC
Inmambacterial mcell, mthemDNAmisminmthe:
A) cell menvelope.
B) cell mmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellular m foundations
Page:m 4 Difficulty:m 1 Ans:m E
Ammajor mchangemoccurring min mthem evolutionmofmeukaryotesmfrommprokaryotesmwasmthemdev
A) DNA.
B) photosyntheticm capability.
C) plasmammembranes.
D) ribosomes.
E) themnucleus.
3. Cellular m foundations
Page:m 4 Difficulty:m 1 Ans:m B
Inmeukaryotes,mthemnucleusmismenclosedmby mam doublemmembranemcalledmthe:
A) cell mmembrane.
B) nuclear menvelope. @theb
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellular m foundations
Page:m4 Difficulty:m 1 Ans:mC
Themdimensionsm ofmliving mcellsmaremlimited,m onm them lower mend m bymthem minimumm num ber m
esmnecessarymformfunction,mandm onm them upper mend m bym themratem ofm diffusion m ofm solutesm su
Exceptmform highlym elongatedmcells,mtheym usuallym havemlengthsmandm diametersminm them range
A) 0.1mµmmtom 10m µm.
B) 0.3mµmmtom 30m µm.
C) 0.3mµmmtom 100 mµm.
D) 1mµmmtom100m µm.
,2 Chapterm 1 m m The m Foundationsm
ry
5. Cellular m foundations
Page:m 5 Difficulty:m 2 Ans:m B
Thembacteriumm E.m coli mrequiresmsimplem organicmmoleculesmformgrowth mandm energy—itmism
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
6. Cellular m foundations
Page:m 10 Difficulty:m 2 Ans:m B
Whichmonemofmthemfollowing mhasmthemcellular mcomponentsmarrangedminmorder mofm increasin
A) Aminomacidm<mproteinm<m mitochondrionm<mribosome
B) Aminomacidm<mproteinm<mribosomem<mmitochondrion
C) Aminomacidm<mribosomem<mproteinm<mmitochondrion
D) Protein m<m amino macidm <m mitochondrion m<mribosome
E) Proteinm <mribosomem<m mitochondrion m<maminomacid
7. Cellular m foundations
Page:m 11 Difficulty:m 2 Ans:m A
Themthree-
dimensional m structurem ofm macrom oleculesmismformedm andm maintainedm primarilym through m
nteractions.m Whichm onem ofmthemfollowing mism not mconsideredmam noncovalentminteraction?
A) carbon-carbonm bonds
B) hydrogenm bonds
C) hydrophobicminteractions
D) ionicminteractions
E) vanmderm Waalsminteractions
8. Chemicalmfoundations
Page:m 12 Difficulty:m 2 Ans:m E
Whichmonem ofm themfollowing mism not mamong m themfourm mostmabundantmelementsminmliving m o
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
E) Phosphorus
9. Chemicalmfoundations
Page:m 13 Difficulty:m 1 Ans:m B
Themfourmcovalentmbondsminm methanem(CH m4)maremarrangedm around mcarbonm tomgivem whichm
lowing mgeometries?
, Chapterm 1m m Them Foundationsm of m Biochemist
ry
10. Chemicalmfoundations
Page:m 14 Difficulty:m 1 Ans:m B
Whatmfunctional mgroupsmarempresentmon mthismmolecule?
A) ether mandmaldehyde
B) hydroxylm andm aldehyde
C) hydroxyl mandmcarboxylic macid
D) hydroxylm andm ester
E) hydroxylm andm ketone
11. Chemicalmfoundations
Page:m 16 Difficulty:m 1 Ans:m D
Themmacromoleculesmthatmservemin mthemstoragem andmtransmissionmofmgeneticminformation m
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleic macids.
E) proteins.
12. Chemicalmfoundations
Page:m 17 Difficulty:m 1 Ans:m D
Stereoisomers mthatmaremnonsuperimposablemmirror mimagesm ofmeachmother m aremknownmas:
A) anomers.
B) cis-trans misomers.
C) diastereoisomers.
D) enantiomers.
E) geometricm isomers.
13. Chemicalmfoundations
Page:m 20 Difficulty:m 3 Ans:m E
Themenzymemfumarasemcatalyzesmthe m reversiblem hydrationm ofmfumaricmacid mto ml-
malate,m butmitm willm notmcatalyzemthe mhydrationmof mmaleic macid, mthemcismisomer mof mfumar
smanmexamplemof:
A) biological mactivity.
B) chiral mactivity.
C) racemization.
D) stereoisomerization.
E) stereospecificity.
