Test Bank for Lehninger Principles of Biochemistry (8th Edition) – Chapters 1–28

TestBank:LehningerPrinciplesofBiochemistry,8th
Edition,DavidL.NelsonChapters1-28.

1. Inabacterialcell,theDNAisinthe:
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A) cellenvelope.
B) cellmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. Amajorchangeoccurringintheevolutionofeukaryotesfromprokaryoteswasthe
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developmentof:
A) DNA.
B) photosynthetic capability.
C) plasmamembranes. q.




D) ribosomes.
E) thenucleus.


3. Ineukaryotes,thenucleusisenclosedb yadoublemembranecalledthe:
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A) cellmembrane.
B) nuclearenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Thedimensionsoflivingcellsarelimited,onthelowerendbytheminimumnumberof
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biomoleculesnecessaryforfunction,andontheupperendbytherateofdiffusionof q. q.




solutessuchasoxygen.Exceptforhighlyelongatedcells,theyusuallyhavelengthsand
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diametersintherangeof:
A) 0.1m to10m. q.




B) 0.3m to30m. q.




C) 0.3m to100m. q.




D) 1m to100m. q.




E) 1m to300m. q.




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,5. Whichgroupofsingle-celledmicroorganismshasmanymembersfoundgrowingin
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extremeenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Noneoftheanswersiscorrect. q. q. q.




6. ThebacteriumE.colirequiressimpleorganicmoleculesforgrowthandenergy—itis q. .q q.




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


7. Whichisalistoforganelles?
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A) mitochondria,chromatin,endoplasmicreticulum q.




B) peroxisomes,lysosomes, plasmamembrane q. q.




C) proteasomes, peroxisomes, lysosomes
D) mitochondria, endoplasmic reticulum,
peroxisomes
E) Alloftheanswersarecorrect.
q. q. q.




8. WhichlisthasthecellularcomponentsarrangedinorderofINCREASINGsize?
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A) aminoacid<protein<mitochondrion<ribosome q. q.




B) aminoacid<protein<ribosome<mitochondrion q. q. q. q.




C) aminoacid<ribosome<protein<mitochondrion q. q. q. q. q.




D) protein<aminoacid<mitochondrion<ribosome q. q.




E) protein<ribosome<mitochondrion<aminoacid q. q. q. q. q.




9. Thethree-dimensionalstructureofmacromoleculesisformedandmaintainedprimarily
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throughnoncovalentinteractions. WhichoneofthefollowingisNOTconsidereda
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noncovalentinteraction? q.




A) carbon-carbonbonds q.




B) hydrogenbonds
C) hydrophobicinteractions
D) ionicinteractions




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


11. Thefourcovalentbondsinmethane(CH4)arearrangedaroundcarbontogivewhich
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geometry?
A) linear
B) tetrahedral
C) trigonalbipyramidal
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D) trigonalplanar q.




E) trigonalp yramidal
q.




12. Whatfunctionalgroupsarepresentonthismolecule?
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A) etherandaldehyde
B) hydroxylandaldehyde q.




C) hydroxylandcarboxylic acid q.




D) hydroxylandester q.




E) hydroxylandketone q.




13. Themacromoleculesthatserveinthestorageandtransmissionofgeneticinformation 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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