Test Bank For Lehninger Principles of Biochemistry, 7th Edition by Nelson | 9781464187964 | |Chapter 1-28 | All Chapters with Answers and Rationals

,1. Inpapbacterialpcell,pthepDNApispinpthe:
A) cellpenvelope.
B) cellpmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. Apmajorpchangepoccurringpinpthepevolutionpofpeukaryotespfrompprokaryotespwaspthe
developmentpof:
A) DNA.
B) photosyntheticpcapability.
C) plasmapmembranes.
D) ribosomes.
E) thepnucleus.


3. Inpeukaryotes,pthepnucleuspispenclosedpbypapdoublepmembranepcalledpthe:
A) cellpmembrane.
B) nuclearpenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4.pThepdimensionspofplivingpcellspareplimited,ponptheplowerpendpbypthepminimumpnumberpofpbi
omoleculespnecessarypforpfunction,pandponpthepupperpendpbypthepratepofpdiffusionpofpsolute
spsuchpaspoxygen.pExceptpforphighlypelongatedpcells,ptheypusuallyphaveplengthspandpdiamet
erspinptheprangepof:
A)ppp0.1pmptop10pm.
B) 0.3pmptop30pm.
C) 0.3pmptop100pm.
D)ppp1pmptop100pm.
E) 1pmptop300pm.


5. Whichpgrouppofpsingle-celledpmicroorganismsphaspmanypmemberspfoundpgrowingpin
extremepenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Nonepofpthepanswerspispcorrect.




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, 6. ThepbacteriumpE.pcoliprequirespsimpleporganicpmoleculespforpgrowthpandpenergyóitpis
thereforepa:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichpispaplistpofporganelles?
A) mitochondria,pchromatin,pendoplasmicpreticulum
B) peroxisomes,plysosomes,pplasmapmembrane
C) proteasomes,pperoxisomes,plysosomes
D) mitochondria,pendoplasmicpreticulum,pperoxisomes
E) Allpofpthepanswersparepcorrect.


8. WhichplistphaspthepcellularpcomponentsparrangedpinporderpofpINCREASINGpsize?
A) aminopacidp<pproteinp<pmitochondrionp<pribosome
B) aminopacidp<pproteinp<pribosomep<pmitochondrion
C) aminopacidp<pribosomep<pproteinp<pmitochondrion
D) proteinp<paminopacidp<pmitochondrionp<pribosome
E) proteinp<pribosomep<pmitochondrionp<paminopacid


9. Thepthree-
dimensionalpstructurepofpmacromoleculespispformedpandpmaintainedpprimarilypthroughpno
ncovalentpinteractions.ppWhichponepofpthepfollowingpispNOTpconsideredpa
noncovalentpinteraction?
A) carbon-carbonpbonds
B) hydrogenpbonds
C) hydrophobicpinteractions
D) ionicpinteractions
E) vanpderpWaalspinteractions


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




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, 11. Thepfourpcovalentpbondspinpmethanep(CH4)pareparrangedparoundpcarbonptopgivepwhichpg
eometry?
A) linear
B) tetrahedral
C) trigonalpbipyramidal
D) trigonalpplanar
E) trigonalppyramidal


12. Whatpfunctionalpgroupspareppresentponpthispmolecule?




A) etherpandpaldehyde
B) hydroxylpandpaldehyde
C) hydroxylpandpcarboxylicpacid
D) hydroxylpandpester
E) hydroxylpandpketone


13. Thepmacromoleculespthatpservepinpthepstoragepandptransmissionpofpgeneticpinformation
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicpacids.
E) proteins.


14. Stereoisomerspthatparepnonsuperimposablepmirrorpimagespofpeachpotherparepknownpas:
A) anomers.
B) cis-transpisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricpisomers.




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