Test Bank: Lehninger Principles of Biochemistry, 7th Edition, David L. Nelson Chapters 1-28.

Test Bank: Lehninger Principles of Biochemistry, 7th
q q q q q q q


Edition, David L. Nelson Chapters 1-28.
q q q q q




1. Inqaqbacterialqcell,qtheqDNAqisqinqthe:
A) cellqenvelope.
B) cellqmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. Aqmajorqchangeqoccurringqinqtheqevolutionqofqeukaryotesqfromqprokaryotesqwasqthe
developmentqof:
A) DNA.
B) photosyntheticqcapability.
C) plasmaqmembranes.
D) ribosomes.
E) theqnucleus.


3. Inqeukaryotes,qtheqnucleusqisqenclosedqbyqaqdoubleqmembraneqcalledqthe:
A) cellqmembrane.
B) nuclearqenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Theqdimensionsqofqlivingqcellsqareqlimited,qonqtheqlowerqendqbyqtheqminimumqnumberqofq
biomoleculesqnecessaryqforqfunction,qandqonqthequpperqendqbyqtheqrateqofqdiffusionqof
solutesqsuchqasqoxygen.qExceptqforqhighlyqelongatedqcells,qtheyqusuallyqhaveqlengthsqandq
diametersqinqtheqrangeqof:
A) 0.1qmqtoq10qm.
B) 0.3qmqtoq30qm.
C) 0.3qmqtoq100qm.
D) 1qmqtoq100qm.
E) 1qmqtoq300qm.




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,5. Whichqgroupqofqsingle-celledqmicroorganismsqhasqmanyqmembersqfoundqgrowingqin
extremeqenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneqofqtheqanswersqisqcorrect.


6. TheqbacteriumqE.qcoliqrequiresqsimpleqorganicqmoleculesqforqgrowthqandqenergy—itqis
thereforeqa:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichqisqaqlistqofqorganelles?
A) mitochondria,qchromatin,qendoplasmicqreticulum
B) peroxisomes,qlysosomes,qplasmaqmembrane
C) proteasomes,qperoxisomes,qlysosomes
D) mitochondria,qendoplasmicqreticulum,qperoxisomes
E) Allqofqtheqanswersqareqcorrect.


8. WhichqlistqhasqtheqcellularqcomponentsqarrangedqinqorderqofqINCREASINGqsize?
A) aminoqacidq<qproteinq<qmitochondrionq<qribosome
B) aminoqacidq<qproteinq<qribosomeq<qmitochondrion
C) aminoqacidq<qribosomeq<qproteinq<qmitochondrion
D) proteinq<qaminoqacidq<qmitochondrionq<qribosome
E) proteinq<qribosomeq<qmitochondrionq<qaminoqacid


9. Theqthree-
dimensionalqstructureqofqmacromoleculesqisqformedqandqmaintainedqprimarilyqthroughqn
oncovalentqinteractions.q WhichqoneqofqtheqfollowingqisqNOTqconsideredqa
noncovalentqinteraction?
A) carbon-carbonqbonds
B) hydrogenqbonds
C) hydrophobicqinteractions
D) ionicqinteractions
E) vanqderqWaalsqinteractions




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,10. WhichqelementqisqNOTqamongqtheqfourqmostqabundantqinqlivingqorganisms?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus


11. Theqfourqcovalentqbondsqinqmethaneq(CH4)qareqarrangedqaroundqcarbonqtoqgiveqwhich
geometry?
A) linear
B) tetrahedral
C) trigonalqbipyramidal
D) trigonalqplanar
E) trigonalqpyramidal


12. Whatqfunctionalqgroupsqareqpresentqonqthisqmolecule?




A) etherqandqaldehyde
B) hydroxylqandqaldehyde
C) hydroxylqandqcarboxylicqacid
D) hydroxylqandqester
E) hydroxylqandqketone


13. Theqmacromoleculesqthatqserveqinqtheqstorageqandqtransmissionqofqgeneticqinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicqacids.
E) proteins.


14. Stereoisomersqthatqareqnonsuperimposableqmirrorqimagesqofqeachqotherqareqknownqas:
A) anomers.
B) cis-transqisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricqisomers.



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, 15. Theqcatalogqofqallqproteinsqfunctioningqinqaqcellqisqthe:
A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.

AnswerqKey
1. B
2. D
3. D
4. C
5. E
6. A
7. B
8. D
9. E
10. E
11. D
12. A
13. D
14. A
15. A
16. C
17. B
18. C
19. A
20. D
21. B
22. C
23. D




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