Test Bank for Biochemistry The Molecular Basis of Life 7th Edition McKee / All Chapters 1 - 19 / Full Complete

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CHAPTERvTWOv
LIVINGvCELLS

1) Duringvexocytosisvmembrane-boundvvesiclesvmigratevfromvthevGolgivapparatusvtovthe
v .

A) Lysosome
B) Smoothvendoplasmicvreticulum
C) Cellvwall
D) Plasmavmembrane
E) Morevthanvonevanswervisvcorrect

Ansv D

2) Notablevfeaturesvofveukaryotesvincludevallvofvthevfollowingvexcept .

A) Rapidvcellvdivision
B) Largervsize
C) Avcomplexvinternalvstructure
D) Anvendomembranevsystem
E) Organelles

AnsvA

3) Gram-negativevbacteriavlack .

A) Cellvwalls
B) Peptidoglycansvinvthevcellvwall
C) Anvoutervcoatvofvlipidvboundvproteins
D) DNA
E) Carbohydratevcontainingvpolymersvinvthevcellvwall

AnsvE


4) Thevplasmavmembrane .

A) Providesvsupport
B) Isvpresentvonlyvinveukaryotes
C) Controlsvthevflowvofvsubstancesvinvandvoutvofvthevcell
D) Isvpresentvonlyvinvprokaryotes
E) BothvAvandvCvarevcorrect

AnsvE

5) Structuralvfeaturesvthatvmakevphospholipidsvsuitedvforvtheirvbiologicalvrolevare:




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A) Avhydrophilicvheadvgroup
B) Branchedvcarbonvchains
C) Avhydrophobicvgroup
D) AvandvCvarevcorrect
E) Nonevofvthevabovevisvtrue

AnsvD


6) Thevgrainyvappearancevofvprokaryoticvcytoplasmvisvduevinvpartvto .

A) Avlargevnumbervofvribosomes
B) Plasmids
C) Nucleolus
D) DNA
E) RNA

AnsvA

7) Whichvofvthevfollowingvtypesvofvmoleculesvisvnotvhydrophilic
A) Sodiumvchloride
B) Glucose
C) Aminovacids
D) Fats
E) BothvAvandvBvarevcorrect.

AnsvD

8) Thevbasicvstructurevofvbiologicalvmembranesvisvprovidedvbyvwhatvclassvofvcompounds?

A) Proteins
B) Lipids
C) Carbohydrates
D) Steroids
E) Peptidoglycans

AnsvB

9) Whichvofvthevfollowingvisvnotvtruevofvthevnucleus?

A) Itvisvfoundvinvbothveukaryotesvandvprokaryotes
B) Itvcontainsvthevcell’sv“geneticvblueprint”
C) Itvexertsvavprofoundvinfluencevovervallvcellularvmetabolicvfunctions
D) Itvcontainsvchromatinvfibers
E) Itvisvboundedvbyvmembrane




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AnsvA

10) Whichvofvthevfollowingvstatementsvisvnotvtruevofvthevendoplasmicvreticulum?

A) Itvoftenvconstitutesvmorevthanvhalfvofvthevcell’svtotalvmembrane
B) Itvexistsvinvtwovforms:vroughvandvsmooth
C) RoughvERvisvresponsiblevforvproteinvsynthesis
D) SmoothvERvisvresponsiblevforvlipidvsynthesis
E) RoughvERvribosomesvarevresponsiblevforvbiotransformation.


AnsvE

11) Whichvofvthevfollowingvisvnotvtruevofveukaryoticvribosomes?

A) Theyvarevmacromolecularvmachines
B) Theyvfunctionvinvthevbiosynthesisvofvproteins
C) TheyvcontainvribosomalvRNA
D) Theyvconsistvofvtwovunequallyvsizedvsubunits
E) TheyvarevattachedvtovthevsmoothvER

AnsvE

12) WhichvofvthevfollowingvstatementsvisvnotvtruevofvthevGolgivapparatus?

A) Thevanalogousvplantvstructurevisvreferredvtovasvavdictyosome
B) Itvhasvtwovfaces
C) ThevcisternavorvformingvfacevusuallyvprojectsvtowardvthevER
D) Itvisvinvolvedvinvthevpackagingvandvsecretionvofvcellvproducts
E) Itvisvusuallyvlocatedvnearvthevplasmavmembrane

AnsvE


13) Whichvofvthevfollowingvstatementsvisvnotvtruevofvthevlysosome?

A) Itvfunctionsvinvintercellularvdigestion
B) BothvERvandvGolgivapparatusvarevinvolvedvinvitsvformation
C) Itvisvcapablevofvdegradingvmostvbiomolecules
D) Itvisvinvolvedvinvthevpackagingvandvsecretionvofvcellvproducts
E) Itvisvinvolvedvinvpathologicalvconditionsvsuchvasvgoutvandvrheumatoidvarthritis

AnsvD

14) Acidvhydrolasesvarevfoundvin .




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