Test bank for Lehninger principles of biochemistry 8th Edition BY David N Lenson,Micheal M Cox Questions and Answers Latest Versions Top Rated .

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,Test bank for Lehninger
principles of biochemistry 8th
Edition BY David N
Lenson,Micheal M Cox
Questions and Answers Latest
Versions Top Rated
1. Inabacterialcell,theDNAisinthe:
A) cellenvelope.
B) cellmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


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


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


4. Thedimensionsoflivingcellsarelimited,onthelowerendbytheminimumnumberof
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,biomoleculesnecessaryforfunction,andontheupperendbytherateofdiffusionof
solutessuchasoxygen.Exceptforhighlyelongatedcells,theyusuallyhavelengthsand
diametersintherangeof:
A) 0.1m to10m.
B




B) 0.3m to30m.
B




C) 0.3m to100m.
B




D) 1m to100m.
B




E) 1m to300m.
B




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, 5. Whichgroupofsingle-celledmicroorganismshasmanymembersfoundgrowingin
f




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


6. ThebacteriumE.colirequiressimpleorganicmoleculesforgrowthandenergy—itis
thereforea:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichisalistoforganelles?
A) mitochondria,chromatin,endoplasmicreticulum
B) peroxisomes,lysosomes,plasmamembrane
C) proteasomes,peroxisomes,lysosomes
D) mitochondria,endoplasmicreticulum,peroxisomes
E) Alloftheanswersarecorrect.


8. WhichlisthasthecellularcomponentsarrangedinorderofINCREASINGsize?
V




A) aminoacid<protein<mitochondrion<ribosome
B) aminoacid<protein<ribosome<mitochondrion
C) aminoacid<ribosome<protein<mitochondrion
D) protein<aminoacid<mitochondrion<ribosome
E) protein<ribosome<mitochondrion<aminoacid


9. Thethree-dimensionalstructureofmacromoleculesisformedandmaintainedprimarily
throughnoncovalentinteractions. WhichoneofthefollowingisNOTconsidereda
noncovalentinteraction?
A) carbon-carbonbonds
B) hydrogenbonds
C) hydrophobicinteractions
D) ionicinteractions
E) van derWaalsinteractions
B




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