Test Bank for Microbiology: An Evolving Science 5th Edition by Slonczewski & Foster, All Chapters 1 - 28 Complete, Verified Latest Edition

TEST BANK
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Microbiology An Evolving Science, 5th Edition,
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John Foster & Joan Slonczewski, All Chapter 1 - 28
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,CHAPTER 1: Microbial Life: Origin and Discovery
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MULTIPLE CHOICE
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1. Viruses are: BH




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




b. noncellular particles that take over the metabolismof a cell to generate more BH BH BH BH BH BH BH BH BH BH BH BH




virusparticles
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c. pathogens that replicate in complex growth media BH BH BH BH BH BH




d. cellular particles that belong to the archaea domain BH BH BH BH BH BH BH




e. microbes that consist of lipid membrane enclosed genomes BH BH BH BH BH BH BH




ANS: B DIF: B H Easy REF: 1.1 BH BH B H TOP: I.A | I.B B H BH BH




MSC: Remembering B H




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




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 BH BH BH BH BH BH BH BH




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




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




MSC: Remembering B H




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 BH




c. archaea
ANS: A DIF: B H Easy REF: 1.1 BH BH B H TOP: I.A.i B H




MSC: Remembering B H




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: B H Easy REF: 1.1 BH BH B H TOP: I.A.i | I.A.ii
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MSC: Remembering B H




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 BH BH BH BH BH BH BH BH BH BH BH




environmental change. BH

, 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. BH BH BH BH BH BH BH BH BH BH




c. Microbes function as individual entities. BH BH BH BH




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




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




ANS: C DIF: B H Easy REF: 1.1 BH BH B H TOP: I.A.i | I.A.ii
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MSC: Remembering B H




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. BH BH




d. Fred Sanger developed the first applicable DNA sequencing method.
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e. Fred Sanger completed the sequences of Haemophilus influenzae.
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ANS: E DIF: B H Easy REF: 1.1 BH BH B H TOP: I.B B H




MSC: Remembering B H




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 DIF: B H Easy REF: 1.1 BH BH B H TOP: I.B.i B H




MSC: Remembering B H




8. The environment of early Earth may have contained all of the following EXCEPT:
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a. ferrous iron d. oxygen BH




b. methane e. hydrogen gas BH




c. ammonia
ANS: D B H DIF: Easy REF: Special Topic BH BH




1.1TOP: II.D
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B B H MSC: Remembering B H




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 B H DIF: Medium REF: Special Topic BH BH




1.1TOP: II.D
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B B H MSC: Remembering B H




10. Which microbes may resemble those of the earliest life forms?
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a. archaea d. cyanobacteria
b. photosynthetic algae e. protists BH




c. viruses
ANS: A B H DIF: Medium REF: Special Topic BH BH




1.1TOP: II.D
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B B H MSC: Remembering B H




11. Early metabolism may have been catalyzed by:
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a. DNA d. amino acids BH




b. RNA e. carbohydrates