70
,DOWNLOAD70THE70Test70Bank70for70Biology70Life70on70Earth70with70Physiology7011t
h70Edition70Audesirk
MULTIPLE70 CHOICE.7 0 Choose70 the70 one70 alternative70 that70 best70 completes70 the70 statement70 or70 answers70 the70 question.
1) A70substance70with70specific70properties70that70cannot70be70broken70down70or70converted70into70another70s
ubstance70is70called70a(n)
A) molecule.
B) compound.
C) mixture.
D) ion.
E) element.
70Answer:7 0
E
2) If70you70examined70the70human70body70on70a70chemical70composition70basis,70which70of70the70following
70combinations70of70elements70would70be70most70common?
A) O,70C,70H,70N
B) O,70C,70N,70Na
C) C,70H,70Ca,70 Cl
D) C,70N,70Ca,70 S
E) O,70C,70P,70S
Answer:7 0 A
3) The70 atomic70 number70 of70an70 atom70 is70 defined70 as70 the
A) total70 number70 of70 electrons70and70 neutrons.
B) total70 number70 of70 energy70 shells.
C) number70 of70 protons70 in70the70atomic70 nucleus.
D) number70 of70 neutrons70 in70the70 atomic70 nucleus.
E) number70of70electrons70in70the70outermost70energ
y70level.70Answer:7 0 C
4) Phosphorus70has70an70 atomic70 number70 of70 15,70 so70 what70 is70the70 distribution70 of70 its70 electrons?
A) The70 first,70 second,70 and70 third70 energy70 levels70 have70 570 electrons70 each.
B) The70first70 energy70 level70 has70 870 and70 the70 second70has70 7.
C) The70first70 energy70 level70 has70 2,70 the70 second70has70 8,70 and70 the70third70has705.
D) The70first70 energy70 level70 has70 270 and70 the70 second70has70 13.
E) The70electron70arrangement70cannot70be70determined70from70the70atomic70nu
mber70alone.70Answer:7 0 C
5) Which70 four70 elements70 make70 up70 approximately70 96%70 of70 living70 matter?
A) Carbon,70 hydrogen,70 nitrogen,70 oxygen
B) Carbon,70 oxygen,70 calcium,70 sulfur
C) Carbon,70 sodium,70 chlorine,70 magnesium
D) Carbon,70 phosphorus,70 hydrogen,70 sulfur
E) Oxygen,70hydrogen,70calcium,70sodi
um70Answer:7 0 A
6) Imagine70that70you70have70been70hired70as70a70chemist70and70your70first70task70is70to70examine70a70newly70
discovered70atom.70The70paperwork70you70are70given70states70that70its70atomic70number70is70110.70What70d
oes70this70mean?
A) The70atom70 contains70 5570 protons70 and705570 neutrons.
B) The70 atom70 contains705570 electrons.
C) The70atom70 is70 an70 isotope.
D) The70atom70contains7011070pro
tons.70Answer:7 0 D
1
mynursytest.store
,DOWNLOAD70THE70Test70Bank70for70Biology70Life70on70Earth70with70Physiology7011t
h70Edition70Audesirk
7) Iron70is70an70important70element70in70human70body70cells.70If70iron70has70an70atomic70number70of7026,70w
hat70does70this70tell70you70about70this70element?
A) An70iron70 atom70 has702670 protons.
B) An70 iron70 atom70 is70 unable70 to70become70 an70 isotope.
C) An70iron70 atom70 has701370 electrons70and70 1370 protons.
D) An70iron70atom70has701370protons70and70137
0neutrons.70Answer:7 0 A
8) Carbon-1470is70often70used70for70carbon70dating,70where70scientists70measure70the70rate70of70carbon-
1470decay70to70determine70the70age70of70items.70Carbon-
1470contains70six70protons70and70eight70neutrons.70During70the70process70of70carbon-
1470decay,7 0 one70of70its70eight70neutrons70becomes70a70proton70and70an70electron70is70emitted.70Which70of
70the70following70is70the70best70explanation70of70what70has70occurred?
A) The70 resulting70 atom70 is70 still70 carbon-14.
B) The70 resulting70atom70 has70 a70 more70 stable70 nucleus.
C) An70 ionic70 bond70 has70 formed.
D) The70resulting70atom70is70now70a70different70element70because70the70number70of70proton
s70has70changed.70Answer:7 0 D
9) Radioactive70 isotopes70are70biological70 tools70 that70 are70 often70used70 to
A) detect70 brain70 tumors70 and70 other70 important70 medical70 technologies.
B) build70up70 a70 store70 of70 calcium70 in70a70 cell.
C) increase70the70 pH70 of70 blood.
D) measure70the70size70of70fo
ssils.70Answer:7 0 A
10) For70 an70 atom70 to70 achieve70 maximum70 stability70 and70 become70 chemically70 inert,70 what70 must70 occur?
A) Ionization70 occurs.
B) Its70 outermost70 energy70 shell70 must70 be70 completely70 filled70 with70 electrons.
C) Electron70 pairs70 are70 shared.
D) The70number70of70electrons70must70equal70the70number70o
f70protons.70Answer:7 0 B
11) An70 atom's70 nucleus70 is70 composed70 of
A) neutrons70 and70 electrons.
B) protons70 only.
C) protons70 and70 electrons.
D) protons70 and70 neutrons.
E) neutrons70 onl
y.
Answer:7 0 D
12) The70 formation70 of70 ions70 involves70 the
A) sharing70of70 protons.
B) gain70or70loss70 of70 protons.
C) sharing70of70 electrons.
D) gain70or70loss70 of70 neutrons.
E) gain70or70loss70of70elect
rons.70Answer:7 0 E
2
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, DOWNLOAD70THE70Test70Bank70for70Biology70Life70on70Earth70with70Physiology7011t
h70Edition70Audesirk
13) If70a70 certain70 atom70 has70a70 tendency70 to70 lose70 two70electrons,70 that70 atom70 can70 then70 become70 a(n)
A) polar70 molecule.
B) ion.
C) isotope.
D) water70 molecul
e.
Answer:7 0 B
14) The70 formation70 of70 sodium70 chloride70 (NaCl)70 is70 the70 result70 of
A) attraction70 between70 opposite70 charges.
B) chemical70 unreactivity.
C) covalent70 bonding.
D) repelling70between70the70same70cha
rges.70Answer:7 0 A
15) Atoms70 or70 molecules70that70 have70 gained70 or70 lost70 electrons70 are70 called
A) bases.
B) ions.
C) acids.
D) buffers.
E) covalent.
70Answer:7 0 B
16) Most70 biological70 molecules70 are70 joined70 by
A) ionic70 bonds.
B) peptide70 bonds.
C) covalent70 bonds.
D) hydrogen70 bonds.
E) disulfide70bond
s.70Answer:7 0 C
17) Sulfur70is70an70essential70element70in70the70human70body,70and70studying70its70characteristics70is70important7
0in70understanding70human70physiology.70Sulfur70atoms70have70six70electrons70in70their70outer70shell.70Based
70on70this70information,70which70of70the70following70is70TRUE?
A) Sulfur70 has70eight70electrons70 in70 its70 outer70 shell.
B) Sulfur70 is70 inert.
C) Sulfur70 is70an70 important70 isotope70 of70 hydrogen.
D) Sulfur70can70form70important70molecules70using70covalent
70bonds.70Answer:7 0 D
18) Free70radicals70contain70unpaired70electrons70in70their70outermost70energy70shell,70so70they70react70readily70
with70other70atoms7 0 or70molecules70to70reach70a70more70stable70state.70Which70of70the70following70could70p
otentially70be70a70free70radical?
A) Helium70 (atomic70 number70 2)
B) Magnesium70 (atomic70 number70 12)
C) Neon70 (atomic70 number70 10)
D) Fluorine70(atomic70number
709)70Answer:7 0 D
3
mynursytest.store
,DOWNLOAD70THE70Test70Bank70for70Biology70Life70on70Earth70with70Physiology7011t
h70Edition70Audesirk
MULTIPLE70 CHOICE.7 0 Choose70 the70 one70 alternative70 that70 best70 completes70 the70 statement70 or70 answers70 the70 question.
1) A70substance70with70specific70properties70that70cannot70be70broken70down70or70converted70into70another70s
ubstance70is70called70a(n)
A) molecule.
B) compound.
C) mixture.
D) ion.
E) element.
70Answer:7 0
E
2) If70you70examined70the70human70body70on70a70chemical70composition70basis,70which70of70the70following
70combinations70of70elements70would70be70most70common?
A) O,70C,70H,70N
B) O,70C,70N,70Na
C) C,70H,70Ca,70 Cl
D) C,70N,70Ca,70 S
E) O,70C,70P,70S
Answer:7 0 A
3) The70 atomic70 number70 of70an70 atom70 is70 defined70 as70 the
A) total70 number70 of70 electrons70and70 neutrons.
B) total70 number70 of70 energy70 shells.
C) number70 of70 protons70 in70the70atomic70 nucleus.
D) number70 of70 neutrons70 in70the70 atomic70 nucleus.
E) number70of70electrons70in70the70outermost70energ
y70level.70Answer:7 0 C
4) Phosphorus70has70an70 atomic70 number70 of70 15,70 so70 what70 is70the70 distribution70 of70 its70 electrons?
A) The70 first,70 second,70 and70 third70 energy70 levels70 have70 570 electrons70 each.
B) The70first70 energy70 level70 has70 870 and70 the70 second70has70 7.
C) The70first70 energy70 level70 has70 2,70 the70 second70has70 8,70 and70 the70third70has705.
D) The70first70 energy70 level70 has70 270 and70 the70 second70has70 13.
E) The70electron70arrangement70cannot70be70determined70from70the70atomic70nu
mber70alone.70Answer:7 0 C
5) Which70 four70 elements70 make70 up70 approximately70 96%70 of70 living70 matter?
A) Carbon,70 hydrogen,70 nitrogen,70 oxygen
B) Carbon,70 oxygen,70 calcium,70 sulfur
C) Carbon,70 sodium,70 chlorine,70 magnesium
D) Carbon,70 phosphorus,70 hydrogen,70 sulfur
E) Oxygen,70hydrogen,70calcium,70sodi
um70Answer:7 0 A
6) Imagine70that70you70have70been70hired70as70a70chemist70and70your70first70task70is70to70examine70a70newly70
discovered70atom.70The70paperwork70you70are70given70states70that70its70atomic70number70is70110.70What70d
oes70this70mean?
A) The70atom70 contains70 5570 protons70 and705570 neutrons.
B) The70 atom70 contains705570 electrons.
C) The70atom70 is70 an70 isotope.
D) The70atom70contains7011070pro
tons.70Answer:7 0 D
1
mynursytest.store
,DOWNLOAD70THE70Test70Bank70for70Biology70Life70on70Earth70with70Physiology7011t
h70Edition70Audesirk
7) Iron70is70an70important70element70in70human70body70cells.70If70iron70has70an70atomic70number70of7026,70w
hat70does70this70tell70you70about70this70element?
A) An70iron70 atom70 has702670 protons.
B) An70 iron70 atom70 is70 unable70 to70become70 an70 isotope.
C) An70iron70 atom70 has701370 electrons70and70 1370 protons.
D) An70iron70atom70has701370protons70and70137
0neutrons.70Answer:7 0 A
8) Carbon-1470is70often70used70for70carbon70dating,70where70scientists70measure70the70rate70of70carbon-
1470decay70to70determine70the70age70of70items.70Carbon-
1470contains70six70protons70and70eight70neutrons.70During70the70process70of70carbon-
1470decay,7 0 one70of70its70eight70neutrons70becomes70a70proton70and70an70electron70is70emitted.70Which70of
70the70following70is70the70best70explanation70of70what70has70occurred?
A) The70 resulting70 atom70 is70 still70 carbon-14.
B) The70 resulting70atom70 has70 a70 more70 stable70 nucleus.
C) An70 ionic70 bond70 has70 formed.
D) The70resulting70atom70is70now70a70different70element70because70the70number70of70proton
s70has70changed.70Answer:7 0 D
9) Radioactive70 isotopes70are70biological70 tools70 that70 are70 often70used70 to
A) detect70 brain70 tumors70 and70 other70 important70 medical70 technologies.
B) build70up70 a70 store70 of70 calcium70 in70a70 cell.
C) increase70the70 pH70 of70 blood.
D) measure70the70size70of70fo
ssils.70Answer:7 0 A
10) For70 an70 atom70 to70 achieve70 maximum70 stability70 and70 become70 chemically70 inert,70 what70 must70 occur?
A) Ionization70 occurs.
B) Its70 outermost70 energy70 shell70 must70 be70 completely70 filled70 with70 electrons.
C) Electron70 pairs70 are70 shared.
D) The70number70of70electrons70must70equal70the70number70o
f70protons.70Answer:7 0 B
11) An70 atom's70 nucleus70 is70 composed70 of
A) neutrons70 and70 electrons.
B) protons70 only.
C) protons70 and70 electrons.
D) protons70 and70 neutrons.
E) neutrons70 onl
y.
Answer:7 0 D
12) The70 formation70 of70 ions70 involves70 the
A) sharing70of70 protons.
B) gain70or70loss70 of70 protons.
C) sharing70of70 electrons.
D) gain70or70loss70 of70 neutrons.
E) gain70or70loss70of70elect
rons.70Answer:7 0 E
2
mynursytest.store
, DOWNLOAD70THE70Test70Bank70for70Biology70Life70on70Earth70with70Physiology7011t
h70Edition70Audesirk
13) If70a70 certain70 atom70 has70a70 tendency70 to70 lose70 two70electrons,70 that70 atom70 can70 then70 become70 a(n)
A) polar70 molecule.
B) ion.
C) isotope.
D) water70 molecul
e.
Answer:7 0 B
14) The70 formation70 of70 sodium70 chloride70 (NaCl)70 is70 the70 result70 of
A) attraction70 between70 opposite70 charges.
B) chemical70 unreactivity.
C) covalent70 bonding.
D) repelling70between70the70same70cha
rges.70Answer:7 0 A
15) Atoms70 or70 molecules70that70 have70 gained70 or70 lost70 electrons70 are70 called
A) bases.
B) ions.
C) acids.
D) buffers.
E) covalent.
70Answer:7 0 B
16) Most70 biological70 molecules70 are70 joined70 by
A) ionic70 bonds.
B) peptide70 bonds.
C) covalent70 bonds.
D) hydrogen70 bonds.
E) disulfide70bond
s.70Answer:7 0 C
17) Sulfur70is70an70essential70element70in70the70human70body,70and70studying70its70characteristics70is70important7
0in70understanding70human70physiology.70Sulfur70atoms70have70six70electrons70in70their70outer70shell.70Based
70on70this70information,70which70of70the70following70is70TRUE?
A) Sulfur70 has70eight70electrons70 in70 its70 outer70 shell.
B) Sulfur70 is70 inert.
C) Sulfur70 is70an70 important70 isotope70 of70 hydrogen.
D) Sulfur70can70form70important70molecules70using70covalent
70bonds.70Answer:7 0 D
18) Free70radicals70contain70unpaired70electrons70in70their70outermost70energy70shell,70so70they70react70readily70
with70other70atoms7 0 or70molecules70to70reach70a70more70stable70state.70Which70of70the70following70could70p
otentially70be70a70free70radical?
A) Helium70 (atomic70 number70 2)
B) Magnesium70 (atomic70 number70 12)
C) Neon70 (atomic70 number70 10)
D) Fluorine70(atomic70number
709)70Answer:7 0 D
3
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