Principles of Biochemistry, 5thEdition Test Bank By Moran, Horton, Scrimgeour, Perry,

TEST BANK Y




PRINCIPLES OF BIOCHEMISTRY 5TH EDITION
Y Y Y Y



LaurenceYMoran,YRobertYHorton,YGrayYScrimgeourY&YMarcYPerry

,PrinciplesYofYBiochemistry,Y5thYEditionYTestYBankYBy:YMoran,YHorton,YScrimgeour,YPerry



Contents:
ChapterY1 IntroductionYtoYBiochemistry 1
ChapterY2 Water 10
ChapterY3 AminoYAcidsYandYtheYPrimaryYStructuresYofYProteins 27
ChapterY4 Proteins:YThree-DimensionalYStructureYandYFunction 46
ChapterY5 PropertiesYofYEnzymes 65
ChapterY6 MechanismsYofYEnzymes 85
ChapterY7 CoenzymesYandYVitamins 104
ChapterY8 Carbohydrates 119
ChapterY9 LipidsYandYMembranes 137
ChapterY10 IntroductionYtoYMetabolism 153
ChapterY11 Glycolysis 169
ChapterY12 Gluconeogenesis,YTheYPentoseYPhosphateYPathway,
andYGlycogenYMetabolism 185
ChapterY13 TheYCitricYAcidYCycle 199
ChapterY14 ElectronYTransportYandYOxidativeYPhosphorylation 213
ChapterY15 Photosynthesis 227
ChapterY16 LipidYMetabolism 241
ChapterY17 AminoYAcidYMetabolism 256
ChapterY18 NucleotideYMetabolism 269
ChapterY19 NucleicYAcids 284
ChapterY20 DNAYReplication,YRepair,YandYRecombination 300
ChapterY21 TranscriptionYandYRNAYProcessing 315
ChapterY22 ProteinYSynthesis 330
ChapterY23 RecombinantYDNAYTechnology 348

,Chapter 1 Introduction to Biochemistry
Y Y Y




1) WhichYelementsYaccountYforY moreYthanY97%YofYtheYweightYofYmostYorganisms?
A) C,Y H,YN,YMg,YO,Y S
B) C,YH,YN,YO,YP,YS
C) C,YH,YN
D) Fe,YC,YH,YO,Y P
E) Ca2+,YK+,YNa+,YMg2+,YCl-

Answer:Y B
PageYRef:YSectionY2


2) ProteinsYinYbiologicalYmembranesYmayYbe
A) porous.
B) attachedYtoYtheYmembraneYsurface.
C) spanY theYmembrane.
D) AllYofYtheYabove
E) BYandYCYonly

Answer:Y D
PageYRef:YSectionY3


3) WhichYstatementYaboutYcelluloseYisYfalse?
A) ItYisYtheYmostYabundantYpolysaccharideYinYnature.
B) ItsYmonomersYareYjoinedYbyYglycosidicYbonds.
C) ItYisYpresentYinYtheYstemsYofYfloweringYplants.
D) TheYhydroxylYgroupsYofYneighboringYcelluloseYmoleculesYinteractYtoYformYstrong,Yinsolu
bleYfibers.
E) ItYisYaYbranchedYpolymerYofYglucose.

Answer:Y E
PageYRef:YSectionY3




1

, 4) WhenYKeqYofYaYreactionY=Y1,Ythen

A) theYforwardYreactionYisYfasterYthanYtheYreverseYreaction.
B) theYreverseY reactionYisYfasterYthanYtheYforwardYreaction.
C) theYforwardYandYreverseYreactionYrateYconstantsYareYequal.
D) moreYproductsYareY formedYthanY reactants.
E) fewerYproductsYareYformedYthanYreactants.

Answer:Y C
PageYRef:YSectionY4


5) WhichYstatementYisYtrueYaboutYaY reactionYwithYanYequilibriumYconstant,YKeq,YequalYtoY1000?
A) TheYforwardYrateYconstantY isY1000YtimesYgreaterYthanYtheYreverseYrateYconstant.
B) TheYforwardYrateYconstantY isY3Y timesYgreaterYthanYreverseYrateYconstant.
C) TheYforwardYrateYconstantY isY1000YtimesYsmallerYthanYtheYreverseYrateYconstant.
D) TheYforwardYrateYconstantY isY3Y timesYsmallerYthanYtheYreverseYrateYconstant.
E) ThereYisYnotYenoughY informationYgivenYtoYcompareYtheYforwardYandYreverseYrateYconstants.

Answer:Y A
PageYRef:YSectionY4


6) TheYstudyYofYtheYenergyY changesY duringYmetabolicYreactionsYisYcalled .
A) bioinformatics
B) metabodynamics
C) thermometrics
D) bioenergetics
E) biologicalYheatY dynamics

Answer:Y D
PageYRef:YSectionY4


7) AYspontaneousYchemicalYreactionYalwaysY hasYa change.
A) positiveYGibbʹsYfreeYenergy
B) negativeYGibbʹsYfreeYenergy
C) positiveYenthalpy
D) negativeYenthalpy
E) positiveYentropy

Answer:Y B
PageYRef:YSectionY4




2