,
,
, CHAPTER 1: Microbial Life: Origin and Discovery
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MULTIPLE CHOICE
GU
1. Viruses are: GU
a. infectious agents that infect multi-cellular organisms
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b. noncellular particles that take over the metabolism of a cell to genera
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te more virusparticles
GU GU U
G
c. pathogens that replicate in complex growth media
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d. cellular particles that belong to the archaea domain
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e. microbes that consist of lipid membrane enclosed genomes
GU GU GU GU GU GU GU
ANS: B G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A | I.B
G U GU GU
MSC: Remembering
G U
2. Analysis of DNA sequences reveals:
GU GU GU GU
a. the ancient convergence of two cell types, i.e., prokaryotes and
GU GU GU GU GU GU GU GU GU
eukaryotes
GU
b. prokaryotes and eukaryotes evolved from a common ancestral ce
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ll
c. that bacteria share common ancestor with archaea, but not with
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eukarya
GU
d. prokaryotes are cells with a nucleus GU GU GU GU GU
e. the genome of Haemophilus influenzae has about 2 billion base
GU GU GU GU GU GU GU GU GU GU
pairs
ANS: B G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A | I.B
G U GU GU
MSC: Remembering
G U
3. Which of these groups are considered to be microbes but NOT considered to be cells?
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a. viruses d. protists
b. bacteria e. filamentous fungi GU
c. archaea
ANS: A G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A.i G U
MSC: Remembering
G U
4. A microbe is commonly defined as:
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a. a virus that requires a microscope to be seen
GU GU GU GU GU GU GU GU
b. a bacterium that requires a microscope to be seen
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c. a single-
GU
cellular prokaryote that requires a microscope to be see
GU GU GU GU GU GU GU GU
n
d. a multicellular eukaryote that requires a microscope to
GU GU GU GU GU GU GU GU
be seen GU
e. a living organism that requires a microscope to be seen
GU GU GU GU GU GU GU GU GU
ANS: E G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A.i | I.A.ii
G U GU GU
MSC: Remembering
G U
5. Which one of the following statements regarding microbial cells is NOT true?
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a. Microbial cells acquire food, gain energy to build themselves, and
GU GU GU GU GU GU GU GU GU GU
respond to GU
environmental change. GU
,
, CHAPTER 1: Microbial Life: Origin and Discovery
GU GU GU GU GU GU
MULTIPLE CHOICE
GU
1. Viruses are: GU
a. infectious agents that infect multi-cellular organisms
GU GU GU GU GU
b. noncellular particles that take over the metabolism of a cell to genera
GU GU GU GU GU GU GU GU GU GU GU
te more virusparticles
GU GU U
G
c. pathogens that replicate in complex growth media
GU GU GU GU GU GU
d. cellular particles that belong to the archaea domain
GU GU GU GU GU GU GU
e. microbes that consist of lipid membrane enclosed genomes
GU GU GU GU GU GU GU
ANS: B G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A | I.B
G U GU GU
MSC: Remembering
G U
2. Analysis of DNA sequences reveals:
GU GU GU GU
a. the ancient convergence of two cell types, i.e., prokaryotes and
GU GU GU GU GU GU GU GU GU
eukaryotes
GU
b. prokaryotes and eukaryotes evolved from a common ancestral ce
GU GU GU GU GU GU GU GU
ll
c. that bacteria share common ancestor with archaea, but not with
GU GU GU GU GU GU GU GU GU
eukarya
GU
d. prokaryotes are cells with a nucleus GU GU GU GU GU
e. the genome of Haemophilus influenzae has about 2 billion base
GU GU GU GU GU GU GU GU GU GU
pairs
ANS: B G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A | I.B
G U GU GU
MSC: Remembering
G U
3. Which of these groups are considered to be microbes but NOT considered to be cells?
GU GU GU GU GU GU GU GU GU GU GU GU GU GU
a. viruses d. protists
b. bacteria e. filamentous fungi GU
c. archaea
ANS: A G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A.i G U
MSC: Remembering
G U
4. A microbe is commonly defined as:
GU GU GU GU GU
a. a virus that requires a microscope to be seen
GU GU GU GU GU GU GU GU
b. a bacterium that requires a microscope to be seen
GU GU GU GU GU GU GU GU
c. a single-
GU
cellular prokaryote that requires a microscope to be see
GU GU GU GU GU GU GU GU
n
d. a multicellular eukaryote that requires a microscope to
GU GU GU GU GU GU GU GU
be seen GU
e. a living organism that requires a microscope to be seen
GU GU GU GU GU GU GU GU GU
ANS: E G U DIF: Easy REF: GUGUGU 1.1 TOP: I.A.i | I.A.ii
G U GU GU
MSC: Remembering
G U
5. Which one of the following statements regarding microbial cells is NOT true?
GU GU GU GU GU GU GU GU GU GU GU
a. Microbial cells acquire food, gain energy to build themselves, and
GU GU GU GU GU GU GU GU GU GU
respond to GU
environmental change. GU
