Test Bank for Campbell Biology 12th Edition by Urry, All Chapters 1-56, Complete Guide A+.pdf

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c c c c c c c c c c c




CampbellcBiologycincFocus,c2ec(Urry)cChapter
c2c ThecChemicalcContextcof cLife




2.1 Multiple-ChoicecQuestions

1) About c20-
25%cof cthec92cnaturalcelementscarecknownctocbecessentialctoclife.cWhichcfourcof cthesecelementsc
makecupcapproximatelyc96%cof clivingcmatter?
A) carbon,csodium,chydrogen,cnitrogen
B) carbon,coxygen,cphosphorus,chydrogen
C) oxygen,chydrogen,ccalcium,cnitrogen
D) carbon,chydrogen,cnitrogen,coxygen
E) carbon,coxygen,cnitrogen,ccalciumc
Answer:c D
Topic:c Concept c2.1
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.1

2) Tracecelementscarecthosecrequired cbycancorganismcinconlycminutecquantities.cWhichcof cthecfo
llowingciscactracecelement cthat ciscrequired cbychumanscand cothercvertebrates?
A) nitrogen
B) calcium
C) iodine
D) sodium
E) phosphorus
cAnswer:c C

Topic:c Concept c2.1
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.1

3) Tracecelementscarecthosecrequired cbycancorganismcinconlycminutecquantities.cWhichcof cthecfo
llowingciscactracecelement cthat ciscrequired cbycallcorganisms?
A) iron
B) calcium
C) iodine
D) sodium
E) potassium
cAnswer:c A

Topic:c Concept c2.1
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.1




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,DOWNLOAD THE Test Bank for Campbell Biology in Focus 2nd Edition Urry
c c c c c c c c c c c




4) Whichcof cthecfollowingciscprimarilycresponsiblecforcthecuniquecchemicalcpropertiescof ceachcel
ement?
A) Eachcelement chascacuniquecatomiccmass.
B) Eachcelement chascacuniquecatomiccnumber.
C) Eachcelement chascacuniquecnumbercof cprotons.
D) Eachcelement chascacuniquecnumbercof cneutrons.
E) Eachcelement chascuniquecradioactivecproperties.c
Answer:c C
Topic:c Concept c2.2
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.2

5) Fromcthecatomiccmass,coneccancdeducecthecnumbercof c inceachcatomcof cancelement.
A) protons
B) neutrons
C) electrons
D) protonscpluscelectrons
E) protonscpluscneutronsc
Answer:c E
Topic:c Concept c2.2
Skill:c Application/AnalysiscLearnin
gcOutcome:c 2.2

6) Incwhat cwaycarecelementscincthecsameccolumncof cthecperiodicctablecthecsame?
A) Theychavecthecsamecnumbercof cprotons.
B) Theychavecthecsamecnumbercof cneutrons.
C) Theychavecthecsamecnumbercof celectrons.
D) Theychavecthecsamecnumbercof celectronscinctheircvalencecshell.
E) Theychavecthecsamecnumbercof celectroncshells.c
Answer:c D
Topic:c Concept c2.2
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.2

7) Incwhat cwaycarecelementscincthecsamecrow cof cthecperiodicctablecthecsame?
A) Theychavecthecsamecnumbercof cprotons.
B) Theychavecthecsamecnumbercof cneutrons.
C) Theychavecthecsamecnumbercof celectrons.
D) Theychavecthecsamecnumbercof celectronscinctheircvalencecshell.
E) Theychavecthecsamecnumbercof celectroncshells.c
Answer:c E
Topic:c Concept c2.2
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.2




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, DOWNLOAD THE Test Bank for Campbell Biology in Focus 2nd Edition Urry
c c c c c c c c c c c




8) Thecnucleuscof cacnitrogencatomccontainsc7cneutronscand c7cprotons.cWhichcof cthecfollowingciscacco
rrect cstatement cconcerningcnitrogen?
A) Thecnitrogencatomchascacmasscnumbercof c7cand cancatomiccnumbercof c14.
B) Thecnitrogencatomchascacmasscnumbercof c14cand cancatomiccnumbercof c7.
C) Thecnitrogencatomchascacmasscnumbercof c14cand cancatomiccnumbercof c14.
D) Thecnitrogencatomchascacmasscnumbercof c7cand cancatomiccnumbercof c21.
E) Thecnitrogencatomchascacmasscnumbercof c14cand cancatomiccnumbercof c21.cA
nswer:c B
Topic:c Concept c2.2
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.2

9) Forcelementscincthecfirst cthreecrowscof cthecperiodicctable,cthecpositioncof cancelement cincthecrow cin
dicatescwhichcof cthecfollowing?
A) thectotalcnumbercof celectronscincthecelement
B) thectotalcnumbercof cprotonscincthecelement
C) thectotalcnumbercof cneutronscincthecelement
D) thecnumbercof celectroncorbitalscincthecelement
E) thecnumbercof celectronscincthecvalencecshellc
Answer:c E
Topic:c Concept c2.2
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.2

10) Thecchemicalcbehaviorcof cancatomcdependscprimarilycuponcwhichcof cthecfollowing?
A) thecnumbercof cneutronscincthecnucleus
B) thecnumbercof cprotonscincthecnucleus
C) thecnumbercof celectronscincthecvalencecshell
D) thectotalcnumbercof celectronsccontained cbycthecatom
E) thecnumbercof celectroncshellsccontained cbycthecatomc
Answer:c C
Topic:c Concept c2.2
Skill:c Knowledge/ComprehensioncL
earningcOutcome:c 2.2




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Copyright c©c2016 cPearson cEducation,cInc.
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