Microbiology: An Evolving Science, 5th Edition (John Foster & Joan Slonczewski) – Complete Test Bank (Chapters 1–28)

TEST BANK




Microbiology An Evolving Science, 5th Edition,
John Foster & Joan Slonczewski, All Chapter 1 -
2




8

,
,CHAPTER 1: Microbial Life: Origin and Discovery
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MULTIPLE CHOICE
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1. Viruses are: qu



a. infectious agents that infect multi-cellular organisms qu qu qu qu qu



b. noncellular particles that take over the metabolism of a cell to generate more viruspa
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rticles
c. pathogens that replicate in complex growth media qu qu qu qu qu qu



d. cellular particles that belong to the archaea domain
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e. microbes that consist of lipid membrane enclosed genomes qu qu qu qu qu qu qu




ANS: B DIF:
q u Easy REF: 1.1 quququ TOP: I.A | I.B
q u qu qu



MSC: Remembering
q u




2. Analysis of DNA sequences reveals:
qu qu qu qu


a. the ancient convergence of two cell types, i.e., prokaryotes and eukaryotes
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b. prokaryotes and eukaryotes evolved from a common ancestral cell qu qu qu qu qu qu qu qu



c. that bacteria share common ancestor with archaea, but not with eukarya
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d. prokaryotes are cells with a nucleus qu qu qu qu qu



e. the genome of Haemophilus influenzae has about 2 billion base pairs
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ANS: B DIF:
q u Easy REF: 1.1 quququ TOP: I.A | I.B
q u qu qu



MSC: Remembering
q 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 qu



c. archaea
ANS: A DIF:
q u Easy REF: 1.1 quququ TOP: I.A.i q u



MSC: Remembering
q u




4. A microbe is commonly defined as:
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a. a virus that requires a microscope to be seen
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b. a bacterium that requires a microscope to be seen
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c. a single-cellular prokaryote that requires a microscope to be seen
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d. a multicellular eukaryote that requires a microscope to be seen
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e. a living organism that requires a microscope to be seen
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ANS: E DIF:
q u Easy REF: 1.1 quququ TOP: I.A.i | I.A.ii
q u qu qu



MSC: Remembering
q 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 respond to
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environmental change. qu

, b. Most single-celled organisms require a microscope to render them visible, but some
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bacterial cells are large enough to be seen with naked eyes.
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c. Microbes function as individual entities. qu qu qu qu



d. Many microbes form complex multicellular assemblages.
qu qu qu qu qu



e. Viruses are not considered as microbial cells.
qu qu qu qu qu qu




ANS: C q DIF:
u Easy REF: 1.1 quququ TOP: I.A.i | I.A.ii q u qu qu



MSC: Remembering
q u




6. Which of the following statements is FALSE?
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a. A genome is the total genetic information contained in an organism’s chromosomal DNA.
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b. If a microbe’s genome includes genes for nitrogenase, that microbe probably can fixnitrogen.
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c. By comparing DNA sequences of different organisms, we can figure out how closely
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related they are. qu qu



d. Fred Sanger developed the first applicable DNA sequencing method.
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e. Fred Sanger completed the sequences of Haemophilus influenzae.
qu qu qu qu qu qu qu




ANS: E q DIF:
u Easy REF: 1.1 quququ TOP: I.B q u



MSC: Remembering
q u




7. The first cellular genomes to be sequenced were those of:
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a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: B q DIF:
u Easy REF: 1.1 quququ TOP: I.B.i q u



MSC: Remembering
q u




8. The environment of early Earth may have contained all of the following EXCEPT:
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a. ferrous iron qu d. oxygen
b. methane e. hydrogen gas qu



c. ammonia
ANS: D q u DIF: Easy
REF: Special Topic 1.1TOP:
qu qu qu uq q u II.D
MSC: Remembering q u




9. The development of the theory of the ―RNA world‖ resulted from the discovery of:
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a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: D q u DIF: Medium
REF: Special Topic 1.1TOP:
qu qu qu uq q u II.D
MSC: Remembering q u




10. Which microbes may resemble those of the earliest life forms?
qu qu qu qu qu qu qu qu qu



a. archaea d. cyanobacteria
b. photosynthetic algae e. protists qu



c. viruses
ANS: A q u DIF: Medium
REF: Special Topic 1.1TOP:
qu qu qu uq q u II.D
MSC: Remembering q u




11. Early metabolism may have been catalyzed by:
qu qu qu qu qu qu



a. DNA d. amino acids qu



b. RNA e. carbohydrates