Lehninger Principles of Biochemistry, 7th Edition - Complete Test Bank (Chapters 1-24)

TestBank:LehningerPrinciplesofBiochemistry,7thEdition,
DavidL.NelsonChapters1-28.
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1. Inabacterial cell,theDNAisin the:
U U U U U




A) cellenvelope.
B) cellmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. Amajorchangeoccurringintheevolutionofeukaryotesfromprokaryoteswasthe
U U U U U




developmentof:
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A) DNA.
B) photosyntheticcapability.
C) plasmamembranes.
D) ribosomes.
E) thenucleus.


3. Ineukaryotes,thenucleusisenclosedbyadoublemembranecalledthe:
U U U U U U




A) cellmembrane.
B) nuclearenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Thedimensionsoflivingcells arelimited,onthelower endbytheminimum number of U U U U U




biomoleculesnecessaryforfunction,andontheupperendbytherateofdiffusionof
U U U U U U U U U U U U U U U




solutessuchasoxygen.Exceptforhighlyelongatedcells,theyusuallyhavelengthsand
U U U U U




diameters in the range of:
A) 0.1mto10m.
U U U U U




U U U




B) 0.3mto30m. U U U




C) 0.3mto100m.U U U




D) 1mto100m.
U U U




E) 1mto300m.
U U U




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,5. Whichgroupofsingle-celledmicroorganisms hasmanymembers foundgrowingin
U U U U U U




Uextremeenvironments?
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A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneoftheanswersiscorrect. U U U




6. ThebacteriumE.colirequiressimpleorganicmoleculesforgrowthandenergy—itis
U U U U U U U U U




Uthereforea:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichisalistoforganelles?
U U U U U




A) mitochondria, chromatin, endoplasmicreticulum U U




B) peroxisomes,lysosomes, plasmamembrane U U




C) proteasomes, peroxisomes, lysosomes U U




D) mitochondria, endoplasmicreticulum, peroxisomes U U




E) Alloftheanswers arecorrect.
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8. Whichlisthasthecellularcomponents arrangedin orderof INCREASING size?
U U U U U




A) aminoacid<protein <mitochondrion <ribosome
U U U




B) aminoacid<protein<ribosome<mitochondrion U U U U




C) aminoacid<ribosome <protein <mitochondrion
U U U




D) protein<aminoacid <mitochondrion <ribosome
U U U U U




E) protein<ribosome <mitochondrion <amino acid
U U U U U




9. Thethree-dimensionalstructureofmacromoleculesisformedand maintained primarily v U




Uthrough noncovalent interactions. Whichoneofthefollowing is NOT considered a
U U U U U U U




Unoncovalentinteraction?
A) carbon-carbonbonds
B) hydrogenbonds U




C) hydrophobicinteractions
D) ionicinteractions
E) vanderWaals interactions U U




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


11. Thefourcovalentbondsinmethane(CH4)arearrangedaroundcarbontogivewhich
U U U U U U U




geometry?
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A) linear
B) tetrahedral
C) trigonalbipyramidal
D) trigonalplanar
E) trigonalpyramidal


12. Whatfunctionalgroupsarepresentonthismolecule?
U U U U U




A) etherandaldehyde
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B) hydroxylandaldehyde
C) hydroxyl andcarboxylic acid
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D) hydroxylandester
E) hydroxylandketone


13. Themacromoleculesthatserveinthestorageandtransmissionofgeneticinformation
U U U U U




are:
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A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicacids.
E) proteins.


14. Stereoisomersthatarenonsuperimposablemirrorimagesofeachotherareknownas:
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A) anomers.
B) cis-transisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricisomers.



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, 15. Thecatalogofall proteinsfunctioningina cell is the:
U U U U




A) metabolome.
B) proteasome.
C) lysosome.
D) proteome.
E) genome.

AnswerKey
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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