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.Connections .9th .Edition .Taylor
Campbell .Biology: .Concepts .and .Connections, .9e .(Taylor .et .al.)
.Chapter .2 . The .Chemical .Basis .of .Life
2.1 Multiple .Choice .Questions
1) The .four .most .common .elements .in .living .organisms .are
A) C, .H, .O, .Fe.
B) C, .H, .O, .Na.
C) C, .H, .O, .N.
D) C, .N, .O, .Na.
Answer: . C
.Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
2) Which .of .the .following .is .a .trace .element .in .the .human .body?
A) nitrogen
B) zinc
C) oxygen
D) hydrogen
.Answer: . B
.Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
3) Which .of .the .following .statements .regarding .matter .is .false?
A) All .life .is .composed .of .matter.
B) All .matter .has .mass.
C) All .matter .is .composed .of .elements.
D) All .matter .exists .in .the .form .of
.compounds. .Answer: . D
Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
4) Which .of .the .following .statements .best .describes .a .compound?
A) A .compound .is .a .pure .element.
B) A .compound .contains .two .or .more .different .elements .in .a .fixed .ratio.
C) A .compound .is .exemplified .by .sodium.
D) A .compound .is .a
.solution. .Answer: . B
Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
1
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5) In .the .equation .2 .H2 .+ .O2 .→ .2 .H2O,
A) H2, .O2, .and .H2O .are .all .compounds.
B) H2, .O2, .and .H2O .are .all .elements.
C) only .H2O .is .a .compound.
D) only .H2 .and .O2 .are
.compounds. .Answer: . C
Topic: . 2.1
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.1
Global .LO: . 2
6) Which .of .the .following .trace .elements .needed .by .humans .is .commonly .added .to .table .salt?
A) iodine
B) iron
C) magnesium
D) fluoride
.Answer: .A
.Topic:
. 2.2
Skill: .Remembering/Understanding
.Learning .Outcome: . 2.1
Global .LO: . 5
7) In .some .areas, .fluoride .is .added .during .the .municipal .water .treatment .process .in .order .to .help
A) prevent .goiter.
B) prevent .the .growth .of .bacteria.
C) prevent .the .development .of .mental .retardation.
D) reduce .tooth .decay.
.Answer: . D
Topic: . 2.2
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
Global .LO: . 5
8) Which .of .the .following .particles .are .found .in .the .nucleus .of .an .atom?
A) protons .and .neutrons
B) protons .and .electrons
C) neutrons .and .electrons
D) neutrons, .electrons, .and .protons
.Answer: . A
Topic: . 2.3
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.2
2
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.Connections .9th .Edition .Taylor
9) Electrons .move .about .the .nucleus .of .an .atom .in .the .same .way .that
A) insects .fly .around .a .bright .lamp .at .night.
B) cars .are .parked .along .the .sides .of .a .street.
C) boats .cross .a .lake.
D) birds .migrate .to .a .new .winter
.home. .Answer: . A
Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2
10) What .is .the .atomic .mass .of .an .atom .that .has .6 .protons, .6 .neutrons, .and .6 .electrons?
A) 6
B) 8
C) 12
D) 18
Answer: . C
.Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2, .4
11) An .uncharged .atom .of .boron .has .an .atomic .number .of .5 .and .an .atomic .mass .of .11.
.How .many .electrons .does .boron .have?
A) 11
B) 15
C) 5
D) 2
Answer: . C
.Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2
12) The .sodium .atom .contains .11 .electrons, .11 .protons, .and .12 .neutrons. .What .is .the
.mass .number .of .sodium?
A) 11
B) 22
C) 23
D) 34
Answer: . C
.Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2, .4
3
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.Connections .9th .Edition .Taylor
Campbell .Biology: .Concepts .and .Connections, .9e .(Taylor .et .al.)
.Chapter .2 . The .Chemical .Basis .of .Life
2.1 Multiple .Choice .Questions
1) The .four .most .common .elements .in .living .organisms .are
A) C, .H, .O, .Fe.
B) C, .H, .O, .Na.
C) C, .H, .O, .N.
D) C, .N, .O, .Na.
Answer: . C
.Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
2) Which .of .the .following .is .a .trace .element .in .the .human .body?
A) nitrogen
B) zinc
C) oxygen
D) hydrogen
.Answer: . B
.Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
3) Which .of .the .following .statements .regarding .matter .is .false?
A) All .life .is .composed .of .matter.
B) All .matter .has .mass.
C) All .matter .is .composed .of .elements.
D) All .matter .exists .in .the .form .of
.compounds. .Answer: . D
Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
4) Which .of .the .following .statements .best .describes .a .compound?
A) A .compound .is .a .pure .element.
B) A .compound .contains .two .or .more .different .elements .in .a .fixed .ratio.
C) A .compound .is .exemplified .by .sodium.
D) A .compound .is .a
.solution. .Answer: . B
Topic: . 2.1
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
1
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.Connections .9th .Edition .Taylor
5) In .the .equation .2 .H2 .+ .O2 .→ .2 .H2O,
A) H2, .O2, .and .H2O .are .all .compounds.
B) H2, .O2, .and .H2O .are .all .elements.
C) only .H2O .is .a .compound.
D) only .H2 .and .O2 .are
.compounds. .Answer: . C
Topic: . 2.1
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.1
Global .LO: . 2
6) Which .of .the .following .trace .elements .needed .by .humans .is .commonly .added .to .table .salt?
A) iodine
B) iron
C) magnesium
D) fluoride
.Answer: .A
.Topic:
. 2.2
Skill: .Remembering/Understanding
.Learning .Outcome: . 2.1
Global .LO: . 5
7) In .some .areas, .fluoride .is .added .during .the .municipal .water .treatment .process .in .order .to .help
A) prevent .goiter.
B) prevent .the .growth .of .bacteria.
C) prevent .the .development .of .mental .retardation.
D) reduce .tooth .decay.
.Answer: . D
Topic: . 2.2
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.1
Global .LO: . 5
8) Which .of .the .following .particles .are .found .in .the .nucleus .of .an .atom?
A) protons .and .neutrons
B) protons .and .electrons
C) neutrons .and .electrons
D) neutrons, .electrons, .and .protons
.Answer: . A
Topic: . 2.3
Skill: . Remembering/Understanding
.Learning .Outcome: . 2.2
2
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.Connections .9th .Edition .Taylor
9) Electrons .move .about .the .nucleus .of .an .atom .in .the .same .way .that
A) insects .fly .around .a .bright .lamp .at .night.
B) cars .are .parked .along .the .sides .of .a .street.
C) boats .cross .a .lake.
D) birds .migrate .to .a .new .winter
.home. .Answer: . A
Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2
10) What .is .the .atomic .mass .of .an .atom .that .has .6 .protons, .6 .neutrons, .and .6 .electrons?
A) 6
B) 8
C) 12
D) 18
Answer: . C
.Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2, .4
11) An .uncharged .atom .of .boron .has .an .atomic .number .of .5 .and .an .atomic .mass .of .11.
.How .many .electrons .does .boron .have?
A) 11
B) 15
C) 5
D) 2
Answer: . C
.Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2
12) The .sodium .atom .contains .11 .electrons, .11 .protons, .and .12 .neutrons. .What .is .the
.mass .number .of .sodium?
A) 11
B) 22
C) 23
D) 34
Answer: . C
.Topic: . 2.3
Skill: . Applying/Analyzing
.Learning .Outcome: . 2.2
Global .LO: . 2, .4
3
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