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k
Multiple Choice Questions
k k
1. Cellulark foundations
Pages:k3-4k Difficulty:k1 Ans:kC
Inkakbacterialkcell,kthekDNAkiskinkthe:
A) cellkenvelope.
B) cellk membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellulark foundations
Page:k 4 Difficulty:k 1 Ans:k E
Akmajorkchangekoccurringkinkthek evolutionkofkeukaryoteskfromkprokaryoteskwaskthekdevelop
A) DNA.
B) photosynthetic k capability.
C) plasmakmembranes.
D) ribosomes.
E) theknucleus.
3. Cellulark foundations
Page:k 4 Difficulty:k 1 Ans:k B
Inkeukaryotes,ktheknucleuskiskenclosedkbykak doublekmembranekcalledkthe:
A) cellk membrane.
B) nuclearkenvelope. @theb
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellulark foundations
Page:k4 Difficulty:k 1 Ans:kC
Thekdimensionskofklivingkcellskareklimited,konkthek lowerkendkbykthekminimumknumberk ofkbi
cessarykforkfunction,kandkonkthek upperkendkbykthekratek ofkdiffusionkofksolutesksuchkaskoxyg
Exceptkforkhighlykelongatedkcells,ktheykusuallykhaveklengthskandkdiameterskinkthek rangekof:
A) 0.1kµmktok10k µm.
B) 0.3kµmktok30k µm.
C) 0.3kµmktok100k µm.
D) 1kµmktok100k µm.
,2 Chapterk 1k k Thek Foundationsk o
5. Cellulark foundations
Page:k 5 Difficulty:k 2 Ans:k B
Thekbacteriumk E.kcolikrequiresksimplekorganickmoleculeskforkgrowthkandk energy—itkiskther
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
6. Cellulark foundations
Page:k 10 Difficulty:k 2 Ans:k B
Whichkonekofkthekfollowingkhaskthek cellularkcomponentskarrangedkinkorderkofk increasingksi
A) Aminokacidk<kproteink<k mitochondrionk<kribosome
B) Aminokacidk<kproteink<kribosomek<kmitochondrion
C) Aminokacidk<kribosomek<kproteink<kmitochondrion
D) Proteink<kaminokacidk <k mitochondrionk<kribosome
E) Proteink<kribosomek<kmitochondrionk<kaminokacid
7. Cellulark foundations
Page:k 11 Difficulty:k 2 Ans:k A
Thekthree-
dimensionalkstructurekofkmacromoleculeskiskformedkandkmaintainedkprimarilykthroughkno
actions.k Whichkonekofkthekfollowingkisk notkconsideredkaknoncovalentkinteraction?
A) carbon-carbon k bonds
B) hydrogenkbonds
C) hydrophobickinteractions
D) ionickinteractions
E) vankderkWaalskinteractions
8. Chemicalkfoundations
Page:k 12 Difficulty:k 2 Ans:k E
Whichkonekofkthekfollowingkisk notkamongkthekfourk mostkabundantkelementskinklivingkorgan
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
E) Phosphorus
9. Chemicalkfoundations
Page:k 13 Difficulty:k 1 Ans:k B
Thekfourkcovalentkbondskinkmethanek(CHk4)karekarrangedkaroundkcarbonktokgivekwhichkonek
gkgeometries?
, Chapterk 1k k Thek Foundationsk ofk Biochemistry
10. Chemicalkfoundations
Page:k 14 Difficulty:k 1 Ans:k B
Whatkfunctionalkgroupskarekpresentkonkthiskmolecule?
A) etherkandkaldehyde
B) hydroxylk andk aldehyde
C) hydroxylkandkcarboxylickacid
D) hydroxylk andk ester
E) hydroxylk andk ketone
11. Chemicalkfoundations
Page:k 16 Difficulty:k 1 Ans:k D
Thekmacromoleculeskthatkservekinkthekstoragek andktransmissionkofkgenetickinformationkare:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleickacids.
E) proteins.
12. Chemicalkfoundations
Page:k 17 Difficulty:k 1 Ans:k D
Stereoisomerskthatkareknonsuperimposablekmirrorkimageskofkeachkotherk arekknownkas:
A) anomers.
B) cis-transkisomers.
C) diastereoisomers.
D) enantiomers.
E) geometrick isomers.
13. Chemicalkfoundations
Page:k 20 Difficulty:k 3 Ans:k E
Thekenzymekfumarasekcatalyzeskthek reversiblekhydrationkofkfumarickacidktokl-
malate,k butkitkwillknotkcatalyzekthekhydrationkofkmaleickacid,kthekciskisomerkofkfumarickac
xamplekof:
A) biologicalkactivity.
B) chiralkactivity.
C) racemization.
D) stereoisomerization.
E) stereospecificity.
k
Multiple Choice Questions
k k
1. Cellulark foundations
Pages:k3-4k Difficulty:k1 Ans:kC
Inkakbacterialkcell,kthekDNAkiskinkthe:
A) cellkenvelope.
B) cellk membrane.
C) nucleoid.
D) nucleus.
E) ribosomes.
2. Cellulark foundations
Page:k 4 Difficulty:k 1 Ans:k E
Akmajorkchangekoccurringkinkthek evolutionkofkeukaryoteskfromkprokaryoteskwaskthekdevelop
A) DNA.
B) photosynthetic k capability.
C) plasmakmembranes.
D) ribosomes.
E) theknucleus.
3. Cellulark foundations
Page:k 4 Difficulty:k 1 Ans:k B
Inkeukaryotes,ktheknucleuskiskenclosedkbykak doublekmembranekcalledkthe:
A) cellk membrane.
B) nuclearkenvelope. @theb
C) nucleolus.
D) nucleoplasm.
E) nucleosome.
4. Cellulark foundations
Page:k4 Difficulty:k 1 Ans:kC
Thekdimensionskofklivingkcellskareklimited,konkthek lowerkendkbykthekminimumknumberk ofkbi
cessarykforkfunction,kandkonkthek upperkendkbykthekratek ofkdiffusionkofksolutesksuchkaskoxyg
Exceptkforkhighlykelongatedkcells,ktheykusuallykhaveklengthskandkdiameterskinkthek rangekof:
A) 0.1kµmktok10k µm.
B) 0.3kµmktok30k µm.
C) 0.3kµmktok100k µm.
D) 1kµmktok100k µm.
,2 Chapterk 1k k Thek Foundationsk o
5. Cellulark foundations
Page:k 5 Difficulty:k 2 Ans:k B
Thekbacteriumk E.kcolikrequiresksimplekorganickmoleculeskforkgrowthkandk energy—itkiskther
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.
6. Cellulark foundations
Page:k 10 Difficulty:k 2 Ans:k B
Whichkonekofkthekfollowingkhaskthek cellularkcomponentskarrangedkinkorderkofk increasingksi
A) Aminokacidk<kproteink<k mitochondrionk<kribosome
B) Aminokacidk<kproteink<kribosomek<kmitochondrion
C) Aminokacidk<kribosomek<kproteink<kmitochondrion
D) Proteink<kaminokacidk <k mitochondrionk<kribosome
E) Proteink<kribosomek<kmitochondrionk<kaminokacid
7. Cellulark foundations
Page:k 11 Difficulty:k 2 Ans:k A
Thekthree-
dimensionalkstructurekofkmacromoleculeskiskformedkandkmaintainedkprimarilykthroughkno
actions.k Whichkonekofkthekfollowingkisk notkconsideredkaknoncovalentkinteraction?
A) carbon-carbon k bonds
B) hydrogenkbonds
C) hydrophobickinteractions
D) ionickinteractions
E) vankderkWaalskinteractions
8. Chemicalkfoundations
Page:k 12 Difficulty:k 2 Ans:k E
Whichkonekofkthekfollowingkisk notkamongkthekfourk mostkabundantkelementskinklivingkorgan
A) Carbon
B) Hydrogen
C) Nitrogen
D) Oxygen
E) Phosphorus
9. Chemicalkfoundations
Page:k 13 Difficulty:k 1 Ans:k B
Thekfourkcovalentkbondskinkmethanek(CHk4)karekarrangedkaroundkcarbonktokgivekwhichkonek
gkgeometries?
, Chapterk 1k k Thek Foundationsk ofk Biochemistry
10. Chemicalkfoundations
Page:k 14 Difficulty:k 1 Ans:k B
Whatkfunctionalkgroupskarekpresentkonkthiskmolecule?
A) etherkandkaldehyde
B) hydroxylk andk aldehyde
C) hydroxylkandkcarboxylickacid
D) hydroxylk andk ester
E) hydroxylk andk ketone
11. Chemicalkfoundations
Page:k 16 Difficulty:k 1 Ans:k D
Thekmacromoleculeskthatkservekinkthekstoragek andktransmissionkofkgenetickinformationkare:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleickacids.
E) proteins.
12. Chemicalkfoundations
Page:k 17 Difficulty:k 1 Ans:k D
Stereoisomerskthatkareknonsuperimposablekmirrorkimageskofkeachkotherk arekknownkas:
A) anomers.
B) cis-transkisomers.
C) diastereoisomers.
D) enantiomers.
E) geometrick isomers.
13. Chemicalkfoundations
Page:k 20 Difficulty:k 3 Ans:k E
Thekenzymekfumarasekcatalyzeskthek reversiblekhydrationkofkfumarickacidktokl-
malate,k butkitkwillknotkcatalyzekthekhydrationkofkmaleickacid,kthekciskisomerkofkfumarickac
xamplekof:
A) biologicalkactivity.
B) chiralkactivity.
C) racemization.
D) stereoisomerization.
E) stereospecificity.
