,DOWNLOAD10THE10Test10Bank10for10Biology10Life10on10Earth10with10Physiology1011t
h10Edition10Audesirk
MULTIPLE10 CHOICE.1 0 Choose10 the10 one10 alternative10 that10 best10 completes10 the10 statement10 or10 answers10 the10 question.
1) A10substance10with10specific10properties10that10cannot10be10broken10down10or10converted10into10another10s
ubstance10is10called10a(n)
A) molecule.
B) compound.
C) mixture.
D) ion.
E) element.
10Answer:1 0
E
2) If10you10examined10the10human10body10on10a10chemical10composition10basis,10which10of10the10following
10combinations10of10elements10would10be10most10common?
A) O,10C,10H,10N
B) O,10C,10N,10Na
C) C,10H,10Ca,10 Cl
D) C,10N,10Ca,10 S
E) O,10C,10P,10S
Answer:1 0 A
3) The10 atomic10 number10 of10an10 atom10 is10 defined10 as10 the
A) total10 number10 of10 electrons10and10 neutrons.
B) total10 number10 of10 energy10 shells.
C) number10 of10 protons10 in10the10atomic10 nucleus.
D) number10 of10 neutrons10 in10the10 atomic10 nucleus.
E) number10of10electrons10in10the10outermost10energ
y10level.10Answer:1 0 C
4) Phosphorus10has10an10 atomic10 number10 of10 15,10 so10 what10 is10the10 distribution10 of10 its10 electrons?
A) The10 first,10 second,10 and10 third10 energy10 levels10 have10 510 electrons10 each.
B) The10first10 energy10 level10 has10 810 and10 the10 second10has10 7.
C) The10first10 energy10 level10 has10 2,10 the10 second10has10 8,10 and10 the10third10has105.
D) The10first10 energy10 level10 has10 210 and10 the10 second10has10 13.
E) The10electron10arrangement10cannot10be10determined10from10the10atomic10nu
mber10alone.10Answer:1 0 C
5) Which10 four10 elements10 make10 up10 approximately10 96%10 of10 living10 matter?
A) Carbon,10 hydrogen,10 nitrogen,10 oxygen
B) Carbon,10 oxygen,10 calcium,10 sulfur
C) Carbon,10 sodium,10 chlorine,10 magnesium
D) Carbon,10 phosphorus,10 hydrogen,10 sulfur
E) Oxygen,10hydrogen,10calcium,10sodi
um10Answer:1 0 A
6) Imagine10that10you10have10been10hired10as10a10chemist10and10your10first10task10is10to10examine10a10newly10
discovered10atom.10The10paperwork10you10are10given10states10that10its10atomic10number10is10110.10What10d
oes10this10mean?
A) The10atom10 contains10 5510 protons10 and105510 neutrons.
B) The10 atom10 contains105510 electrons.
C) The10atom10 is10 an10 isotope.
D) The10atom10contains1011010pro
tons.10Answer:1 0 D
1
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,DOWNLOAD10THE10Test10Bank10for10Biology10Life10on10Earth10with10Physiology1011t
h10Edition10Audesirk
7) Iron10is10an10important10element10in10human10body10cells.10If10iron10has10an10atomic10number10of1026,10w
hat10does10this10tell10you10about10this10element?
A) An10iron10 atom10 has102610 protons.
B) An10 iron10 atom10 is10 unable10 to10become10 an10 isotope.
C) An10iron10 atom10 has101310 electrons10and10 1310 protons.
D) An10iron10atom10has101310protons10and10131
0neutrons.10Answer:1 0 A
8) Carbon-1410is10often10used10for10carbon10dating,10where10scientists10measure10the10rate10of10carbon-
1410decay10to10determine10the10age10of10items.10Carbon-
1410contains10six10protons10and10eight10neutrons.10During10the10process10of10carbon-
1410decay,1 0 one10of10its10eight10neutrons10becomes10a10proton10and10an10electron10is10emitted.10Which10of
10the10following10is10the10best10explanation10of10what10has10occurred?
A) The10 resulting10 atom10 is10 still10 carbon-14.
B) The10 resulting10atom10 has10 a10 more10 stable10 nucleus.
C) An10 ionic10 bond10 has10 formed.
D) The10resulting10atom10is10now10a10different10element10because10the10number10of10proton
s10has10changed.10Answer:1 0 D
9) Radioactive10 isotopes10are10biological10 tools10 that10 are10 often10used10 to
A) detect10 brain10 tumors10 and10 other10 important10 medical10 technologies.
B) build10up10 a10 store10 of10 calcium10 in10a10 cell.
C) increase10the10 pH10 of10 blood.
D) measure10the10size10of10fo
ssils.10Answer:1 0 A
10) For10 an10 atom10 to10 achieve10 maximum10 stability10 and10 become10 chemically10 inert,10 what10 must10 occur?
A) Ionization10 occurs.
B) Its10 outermost10 energy10 shell10 must10 be10 completely10 filled10 with10 electrons.
C) Electron10 pairs10 are10 shared.
D) The10number10of10electrons10must10equal10the10number10o
f10protons.10Answer:1 0 B
11) An10 atom's10 nucleus10 is10 composed10 of
A) neutrons10 and10 electrons.
B) protons10 only.
C) protons10 and10 electrons.
D) protons10 and10 neutrons.
E) neutrons10 onl
y.
Answer:1 0 D
12) The10 formation10 of10 ions10 involves10 the
A) sharing10of10 protons.
B) gain10or10loss10 of10 protons.
C) sharing10of10 electrons.
D) gain10or10loss10 of10 neutrons.
E) gain10or10loss10of10elect
rons.10Answer:1 0 E
2
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13) If10a10 certain10 atom10 has10a10 tendency10 to10 lose10 two10electrons,10 that10 atom10 can10 then10 become10 a(n)
A) polar10 molecule.
B) ion.
C) isotope.
D) water10 molecul
e.
Answer:1 0 B
14) The10 formation10 of10 sodium10 chloride10 (NaCl)10 is10 the10 result10 of
A) attraction10 between10 opposite10 charges.
B) chemical10 unreactivity.
C) covalent10 bonding.
D) repelling10between10the10same10cha
rges.10Answer:1 0 A
15) Atoms10 or10 molecules10that10 have10 gained10 or10 lost10 electrons10 are10 called
A) bases.
B) ions.
C) acids.
D) buffers.
E) covalent.
10Answer:1 0 B
16) Most10 biological10 molecules10 are10 joined10 by
A) ionic10 bonds.
B) peptide10 bonds.
C) covalent10 bonds.
D) hydrogen10 bonds.
E) disulfide10bond
s.10Answer:1 0 C
17) Sulfur10is10an10essential10element10in10the10human10body,10and10studying10its10characteristics10is10important1
0in10understanding10human10physiology.10Sulfur10atoms10have10six10electrons10in10their10outer10shell.10Based
10on10this10information,10which10of10the10following10is10TRUE?
A) Sulfur10 has10eight10electrons10 in10 its10 outer10 shell.
B) Sulfur10 is10 inert.
C) Sulfur10 is10an10 important10 isotope10 of10 hydrogen.
D) Sulfur10can10form10important10molecules10using10covalent
10bonds.10Answer:1 0 D
18) Free10radicals10contain10unpaired10electrons10in10their10outermost10energy10shell,10so10they10react10readily10
with10other10atoms1 0 or10molecules10to10reach10a10more10stable10state.10Which10of10the10following10could10p
otentially10be10a10free10radical?
A) Helium10 (atomic10 number10 2)
B) Magnesium10 (atomic10 number10 12)
C) Neon10 (atomic10 number10 10)
D) Fluorine10(atomic10number
109)10Answer:1 0 D
3
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h10Edition10Audesirk
MULTIPLE10 CHOICE.1 0 Choose10 the10 one10 alternative10 that10 best10 completes10 the10 statement10 or10 answers10 the10 question.
1) A10substance10with10specific10properties10that10cannot10be10broken10down10or10converted10into10another10s
ubstance10is10called10a(n)
A) molecule.
B) compound.
C) mixture.
D) ion.
E) element.
10Answer:1 0
E
2) If10you10examined10the10human10body10on10a10chemical10composition10basis,10which10of10the10following
10combinations10of10elements10would10be10most10common?
A) O,10C,10H,10N
B) O,10C,10N,10Na
C) C,10H,10Ca,10 Cl
D) C,10N,10Ca,10 S
E) O,10C,10P,10S
Answer:1 0 A
3) The10 atomic10 number10 of10an10 atom10 is10 defined10 as10 the
A) total10 number10 of10 electrons10and10 neutrons.
B) total10 number10 of10 energy10 shells.
C) number10 of10 protons10 in10the10atomic10 nucleus.
D) number10 of10 neutrons10 in10the10 atomic10 nucleus.
E) number10of10electrons10in10the10outermost10energ
y10level.10Answer:1 0 C
4) Phosphorus10has10an10 atomic10 number10 of10 15,10 so10 what10 is10the10 distribution10 of10 its10 electrons?
A) The10 first,10 second,10 and10 third10 energy10 levels10 have10 510 electrons10 each.
B) The10first10 energy10 level10 has10 810 and10 the10 second10has10 7.
C) The10first10 energy10 level10 has10 2,10 the10 second10has10 8,10 and10 the10third10has105.
D) The10first10 energy10 level10 has10 210 and10 the10 second10has10 13.
E) The10electron10arrangement10cannot10be10determined10from10the10atomic10nu
mber10alone.10Answer:1 0 C
5) Which10 four10 elements10 make10 up10 approximately10 96%10 of10 living10 matter?
A) Carbon,10 hydrogen,10 nitrogen,10 oxygen
B) Carbon,10 oxygen,10 calcium,10 sulfur
C) Carbon,10 sodium,10 chlorine,10 magnesium
D) Carbon,10 phosphorus,10 hydrogen,10 sulfur
E) Oxygen,10hydrogen,10calcium,10sodi
um10Answer:1 0 A
6) Imagine10that10you10have10been10hired10as10a10chemist10and10your10first10task10is10to10examine10a10newly10
discovered10atom.10The10paperwork10you10are10given10states10that10its10atomic10number10is10110.10What10d
oes10this10mean?
A) The10atom10 contains10 5510 protons10 and105510 neutrons.
B) The10 atom10 contains105510 electrons.
C) The10atom10 is10 an10 isotope.
D) The10atom10contains1011010pro
tons.10Answer:1 0 D
1
mynursytest.store
,DOWNLOAD10THE10Test10Bank10for10Biology10Life10on10Earth10with10Physiology1011t
h10Edition10Audesirk
7) Iron10is10an10important10element10in10human10body10cells.10If10iron10has10an10atomic10number10of1026,10w
hat10does10this10tell10you10about10this10element?
A) An10iron10 atom10 has102610 protons.
B) An10 iron10 atom10 is10 unable10 to10become10 an10 isotope.
C) An10iron10 atom10 has101310 electrons10and10 1310 protons.
D) An10iron10atom10has101310protons10and10131
0neutrons.10Answer:1 0 A
8) Carbon-1410is10often10used10for10carbon10dating,10where10scientists10measure10the10rate10of10carbon-
1410decay10to10determine10the10age10of10items.10Carbon-
1410contains10six10protons10and10eight10neutrons.10During10the10process10of10carbon-
1410decay,1 0 one10of10its10eight10neutrons10becomes10a10proton10and10an10electron10is10emitted.10Which10of
10the10following10is10the10best10explanation10of10what10has10occurred?
A) The10 resulting10 atom10 is10 still10 carbon-14.
B) The10 resulting10atom10 has10 a10 more10 stable10 nucleus.
C) An10 ionic10 bond10 has10 formed.
D) The10resulting10atom10is10now10a10different10element10because10the10number10of10proton
s10has10changed.10Answer:1 0 D
9) Radioactive10 isotopes10are10biological10 tools10 that10 are10 often10used10 to
A) detect10 brain10 tumors10 and10 other10 important10 medical10 technologies.
B) build10up10 a10 store10 of10 calcium10 in10a10 cell.
C) increase10the10 pH10 of10 blood.
D) measure10the10size10of10fo
ssils.10Answer:1 0 A
10) For10 an10 atom10 to10 achieve10 maximum10 stability10 and10 become10 chemically10 inert,10 what10 must10 occur?
A) Ionization10 occurs.
B) Its10 outermost10 energy10 shell10 must10 be10 completely10 filled10 with10 electrons.
C) Electron10 pairs10 are10 shared.
D) The10number10of10electrons10must10equal10the10number10o
f10protons.10Answer:1 0 B
11) An10 atom's10 nucleus10 is10 composed10 of
A) neutrons10 and10 electrons.
B) protons10 only.
C) protons10 and10 electrons.
D) protons10 and10 neutrons.
E) neutrons10 onl
y.
Answer:1 0 D
12) The10 formation10 of10 ions10 involves10 the
A) sharing10of10 protons.
B) gain10or10loss10 of10 protons.
C) sharing10of10 electrons.
D) gain10or10loss10 of10 neutrons.
E) gain10or10loss10of10elect
rons.10Answer:1 0 E
2
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, DOWNLOAD10THE10Test10Bank10for10Biology10Life10on10Earth10with10Physiology1011t
h10Edition10Audesirk
13) If10a10 certain10 atom10 has10a10 tendency10 to10 lose10 two10electrons,10 that10 atom10 can10 then10 become10 a(n)
A) polar10 molecule.
B) ion.
C) isotope.
D) water10 molecul
e.
Answer:1 0 B
14) The10 formation10 of10 sodium10 chloride10 (NaCl)10 is10 the10 result10 of
A) attraction10 between10 opposite10 charges.
B) chemical10 unreactivity.
C) covalent10 bonding.
D) repelling10between10the10same10cha
rges.10Answer:1 0 A
15) Atoms10 or10 molecules10that10 have10 gained10 or10 lost10 electrons10 are10 called
A) bases.
B) ions.
C) acids.
D) buffers.
E) covalent.
10Answer:1 0 B
16) Most10 biological10 molecules10 are10 joined10 by
A) ionic10 bonds.
B) peptide10 bonds.
C) covalent10 bonds.
D) hydrogen10 bonds.
E) disulfide10bond
s.10Answer:1 0 C
17) Sulfur10is10an10essential10element10in10the10human10body,10and10studying10its10characteristics10is10important1
0in10understanding10human10physiology.10Sulfur10atoms10have10six10electrons10in10their10outer10shell.10Based
10on10this10information,10which10of10the10following10is10TRUE?
A) Sulfur10 has10eight10electrons10 in10 its10 outer10 shell.
B) Sulfur10 is10 inert.
C) Sulfur10 is10an10 important10 isotope10 of10 hydrogen.
D) Sulfur10can10form10important10molecules10using10covalent
10bonds.10Answer:1 0 D
18) Free10radicals10contain10unpaired10electrons10in10their10outermost10energy10shell,10so10they10react10readily10
with10other10atoms1 0 or10molecules10to10reach10a10more10stable10state.10Which10of10the10following10could10p
otentially10be10a10free10radical?
A) Helium10 (atomic10 number10 2)
B) Magnesium10 (atomic10 number10 12)
C) Neon10 (atomic10 number10 10)
D) Fluorine10(atomic10number
109)10Answer:1 0 D
3
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