Test Bank For Lehninger Principles of Biochemistry 7th Edition By David Nelson ( ) 9781464126116 Chapter 1-28 Complete Questions and Answers A+.pdf

,1. Inmambacterialmcell,mthemDNA misminmth
e:
A) cellmenvelope.
B) cellmmembrane.
C) nucleoid.
D) nucleus.
E) ribosomes.


2. A mmajormchangemoccurringminmthemevolutionmof meukaryotesmfrommprokaryotesmwasmt
he
development mof:
A) DNA.
B) photosyntheticmcapability.
C) plasmammembranes.
D) ribosomes.
E) themnucleus.


3. Inmeukaryotes,mthemnucleusmismenclosed mbymamdoublemmembranemcalled mth
e:
A) cellmmembrane.
B) nuclearmenvelope.
C) nucleolus.
D) nucleoplasm.
E) nucleosome.


4. Themdimensionsmof mlivingmcellsmaremlimited,monmthemlowermend mbymthemminimummnumber
mof mbiomoleculesmnecessarymformfunction,mand monmthemuppermend mbymthemratemof mdiffusio

nmof msolutesmsuchmasmoxygen.mExcept mformhighlymelongated mcells,mtheymusuallymhavemleng
thsmand mdiametersminmthemrangemof:
A) 0.1mmmtom10mm.
B) 0.3mmmtom30mm.
C) 0.3mmmtom100mm.
D) 1mmmtom100mm.
E) 1mmmtom300mm.


5. Whichmgroupmof msingle-
celled mmicroorganismsmhasmmanymmembersmfound mgrowingmin
extrememenvironments?
A) bacteria
B) archaea
C) eukaryotes
D) heterotrophs
E) Nonemof mthemanswersmismcorrect.

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, 6. ThembacteriummE.mcolimrequiresmsimplemorganicmmoleculesmformgrowthmand menergyóit m
is
thereforema:
A) chemoautotroph.
B) chemoheterotroph.
C) lithotroph.
D) photoautotroph.
E) photoheterotroph.


7. Whichmismamlist mof morganelles?
A) mitochondria,mchromatin,mendoplasmicmreticulum
B) peroxisomes,mlysosomes,mplasmammembrane
C) proteasomes,mperoxisomes,mlysosomes
D) mitochondria,mendoplasmicmreticulum,mperoxisomes
E) Allmof mthemanswersmaremcorrect.


8. Whichmlist mhasmthemcellularmcomponentsmarranged minmordermof mINCREASING msiz
e?
A) aminomacid m<mproteinm<mmitochondrionm<mribosome
B) aminomacid m<mproteinm<mribosomem<mmitochondrion
C) aminomacid m<mribosomem<mproteinm<mmitochondrion
D) proteinm<maminomacid m<mmitochondrionm<mribosome
E) proteinm<mribosomem<mmitochondrionm<maminomacid


9. Themthree-
dimensionalmstructuremof mmacromoleculesmismformed mand mmaintained mprimarilymthroughm
noncovalent minteractions.m Whichmonemof mthemfollowingmismNOTmconsidered ma
noncovalent minteraction?
A) carbon-carbonmbonds
B) hydrogenmbonds
C) hydrophobicminteractions
D) ionicminteractions
E) vanmdermWaalsminteractions


10. Whichmelement mismNOTmamongmthemfourmmost mabundant minmlivingmorganism
s?
A) carbon
B) hydrogen
C) nitrogen
D) oxygen
E) phosphorus




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, 11. Themfourmcovalent mbondsminmmethanem(CH 4 )maremarranged maround mcarbonmtomgivemwhi
chmgeometry?
A) linear
B) tetrahedral
C) trigonalmbipyramidal
D) trigonalmplanar
E) trigonalmpyramidal


12. What mfunctionalmgroupsmarempresent monmthismmolecule
?




A) ethermand maldehyde
B) hydroxylmand maldehyde
C) hydroxylmand mcarboxylicmacid
D) hydroxylmand mester
E) hydroxylmand mketone


13. Themmacromoleculesmthat mserveminmthemstoragemand mtransmissionmof mgeneticminformatio
n
are:
A) carbohydrates.
B) lipids.
C) membranes.
D) nucleicmacids.
E) proteins.


14. Stereoisomersmthat maremnonsuperimposablemmirrorm images mof meachmothermaremknownma
s:
A) anomers.
B) cis-transmisomers.
C) diastereoisomers.
D) enantiomers.
E) geometricmisomers.




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