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TEST BANK Microbiology An Evolving Science, 5th Edition, John Foster & Joan Slonczewski, All Chapter 1-28

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TEST BANK Microbiology An Evolving Science, 5th Edition, John Foster & Joan Slonczewski, All Chapter 1-28

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Microbiology An Evolving Scienc
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,
,CHAPTER 1: Microbial Life: Origin and Discovery
y y y y y y




MULTIPLE CHOICE
y




1. Virusesare: y




a. infectiousagents thatinfectmulti-cellular organisms y y y y y




b. noncellular particles that take over the metabolism of acell to generate more virus y y y y y y y y y y y y y FG



particles
y




c. pathogens that replicate in complex growth media y y y y y y




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




e. microbesthat consist oflipidmembrane enclosedgenomes y y y y y y y




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




MSC: Remembering y




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




a. the ancient convergence of two cell types, i.e., prokaryotes and eukaryotes
y y y y y y y y y y




b. prokaryotes and eukaryotes evolved from a common ancestral cell y y y y y y y y




c. that bacteria share common ancestor with archaea, but not with eukarya
y y y y y y y y y y




d. prokaryotes are cells with a nucleus y y GF y y




e. the genome ofHaemophilusinfluenzae hasabout 2billion basepairs
y y y y y y y y y y




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




MSC: Remembering y




3. Which of these groups are considered to be microbes but NOT considered to be cells?
y y y y y y y y y y y y y y




a. viruses d. protists y y




b. bacteria e. filamentous fungi y




c. archaea
ANS: A DIF: Easy REF: 1.1 TOP: I.A.i y




MSC: Remembering y




4. A microbe is commonlydefined as:
y y GF y y




a. a virusthat requires a microscope to be seen
y y y y y y y y




b. a bacterium that requires a microscope to be seen
y y y y y y y y




c. a single-cellular prokaryote that requires a microscope to be seen
y y y y y y y y y




d. a multicellular eukaryote that requires a microscope to be seen
y y y y y y y y y




e. a living organism that requires a microscope to be seen
y y y y y y y y y




ANS: E DIF: Easy REF: 1.1 TOP: I.A.i|I.A.ii
y y y




MSC: Remembering y




5. Which one of the following statements regarding microbial cells is NOT true?
y y y y y y y y y y y




a. Microbial cells acquire food, gain energy to build themselves, and respond to
y y y y y y y y y y y




environmentalchange.
y y

, b. Most single-celled organisms require amicroscopetorender themvisible,butsome
y y y y y y y y y y y




bacterialcells are large enough to be seen with naked eyes.
y y y y y y y y y y y




c. Microbes function asindividual entities. y y y y




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




e. Viruses arenot considered as microbial cells. y y y y y y




ANS: C DIF: Easy REF: 1.1 TOP: I.A.i|I.A.ii y y y




MSC: Remembering y




6. Which of thefollowing statements is FALSE?
y y y y y y




a. Agenomeisthetotal geneticinformationcontained inan organism’s chromosomal DNA.
y y y y y y y y y y y y




b. If a microbe’s genome includes genes for nitrogenase, that microbe probably can fix nitroge n.
y y y y y y y y y y y y FG y




c. By comparing DNA sequences of different organisms, we canfigure out how closely
y y GF y y y y y y y y y




related they are.
y y y




d. Fred Sanger developed the first applicable DNA sequencing method.
y y y y y y y y




e. Fred Sanger completed the sequences of Haemophilus influenzae.
y y y y y y y




ANS: E DIF: Easy REF: 1.1 TOP: I.B y




MSC: Remembering y




7. Thefirst cellular genomes to be sequenced werethoseof:
y y y y y y y y y




a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: B DIF: Easy REF: 1.1 TOP: I.B.i y




MSC: Remembering y




8. The environment of early Earth may have contained all of the following EXCEPT:
y y y y y y y y y y y y




a. ferrous iron d. oxygen y y y




b. methane e. hydrogen gas y




c. ammonia
ANS: D DIF: Easy
REF: Special Topic 1.1TOP: II.D y y y




MSC: Remembering
y y




9. The development of the theory of the ―RNA world‖ resulted from the discovery of:
y y y y y y y y y y y y y




a. archaea d. ribozymes y y




b. prions e. endosymbionts
c. bacteria
ANS: D DIF: Medium
REF: Special Topic 1.1TOP: II.D y y y




MSC: Remembering
y y




10. Which microbes may resemble those ofthe earliest life forms?
y y y y y y y y y




a. archaea d. cyanobacteria y y




b. photosynthetic algae e. protists y




c. viruses
ANS: A DIF: Medium
REF: Special Topic 1.1TOP: II.D y y y




MSC: Remembering
y y




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




a. DNA d. aminoacids y y




b. RNA e. carbohydrates

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