TEST BANK for Microbiology: An Evolving Science 6th Edition by Slonczewski & Foster; ISBN: 9781324033523, All 28 Chapters Covered, Verified Latest Edition

TEST BANK mj




Microbiology An Evolving Science, 6th Edition,
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mj John Foster & Joan Slonczewski, All Chapter 1 -
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mj 28

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



a. infectious agents that infect multi-cellular organisms
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b. noncellular particles that take over the metabolism of a cell to generate
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more virusparticles
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c. pathogens that replicate in complex growth media mj mj mj mj mj mj



d. cellular particles that belong to the archaea domain
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e. microbes that consist of lipid membrane enclosed genomes
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ANS: m jB DIF: Easy REF: mj mj mj 1.1 TOP: m j I.A | I.B mj mj



MSC: m j Remembering

2. Analysis of DNA sequences reveals:
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a. the ancient convergence of two cell types, i.e., prokaryotes and
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eukaryotes
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b. prokaryotes and eukaryotes evolved from a common ancestral cell
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c. that bacteria share common ancestor with archaea, but not with
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eukarya
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d. prokaryotes are cells with a nucleus mj mj mj mj mj



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



MSC: m j Remembering

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 mj



c. archaea
ANS: m jA DIF: Easy REF: mj mj mj 1.1 TOP: m j I.A.i
MSC: m j Remembering

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
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be seen
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d. a multicellular eukaryote that requires a microscope to
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be seen
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e. a living organism that requires a microscope to be seen
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ANS: m jE DIF: Easy REF: mj mj mj 1.1 TOP: m j I.A.i | I.A.ii mj mj



MSC: m j Remembering

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
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respond to
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environmental change. mj

, b. Most single-celled organisms require a microscope to render them visible,
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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. mj mj mj mj



d. Many microbes form complex multicellular assemblages.
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e. Viruses are not considered as microbial cells.
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ANS: m jC DIF: Easy REF: mj mj mj 1.1 TOP: m j I.A.i | I.A.ii
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MSC: m j Remembering

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
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chromosomal DNA.
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b. If a microbe’s genome includes genes for nitrogenase, that microbe probably
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can fixnitrogen.
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c. By comparing DNA sequences of different organisms, we can figure out how
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closely
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related they are. mj mj


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: m jE DIF: Easy REF: mj mj mj 1.1 TOP: m j I.B
MSC: m j Remembering

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: m jB DIF: Easy REF: mj mj mj 1.1 TOP: m j I.B.i
MSC: m j Remembering

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



c. ammonia
ANS: D m j DIF: Easy REF: Special Topic mj mj



1.1TOP:
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m m j II.D MSC: Remembering m j




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 m j DIF: Medium REF: Special Topic mj mj



1.1TOP:
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m m j II.D MSC: Remembering m j




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



c. viruses
ANS: A m j DIF: Medium REF: Special Topic mj mj



1.1TOP:
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m m j II.D MSC: Remembering m j




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



b. RNA e. carbohydrates