FULL TEST BANK Microbiology: An Evolving Science Sixth Edition By Joan L. Slonczewski ISBN 978-1324033523 COMPLETE GUIDE | A+ GRADE ASSURED!!! LATEST UPDATE!!!! GUARANTEED SUCCESS!!!!

TEST BANK FOR MICROBIOLOGY
AN EVOLVING SCIENCE BY JOAN
6TH EDITION

,
,CHAPTER1:MicrobialLife:OriginandDiscovery
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MULTIPLE CHOICE
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1. Virusesxare:
a. infectiousxagents that infect multi-cellular organisms K K K K




b. noncellularparticlesthat takeover themetabolismofacell togenerate mor e viru
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sparticles
c. pathogens that replicate in complex growth media K K K K K K




d. cellular particles thatxbelongxto the archaea domain
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e. microbesxthat consistxof lipid membrane enclosed genomes K K K K K




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




MSC: Remembering
K




2. Analysisxof DNA sequences reveals: K K K




a. the ancient convergence oftwo cell types, i.e., prokaryotes and euka ryot
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es
b. prokaryotesand eukaryotesxevolved froma common ancestral cell K K K K K K K




c. thatxbacteria share common ancestor with archaea, but notxwith euk arya K K K K K K K K K




d. prokaryotesare cells with a nucleus K K K K K




e. thegenome of Haemophilus influenzaexhasabout 2 billion base pairs
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ANS: B K DIF: Easy REF: 1.1 K TOP: I.A|I.B K K K




MSC: Remembering
K




3. Which ofthese groups are considered to be microbes butxNOT considered toxbe cells?
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a. viruses d. protists
b. bacteria e. filamentousxfungi
c. archaea

ANS: A K DIF: Easy REF: 1.1 K TOP: I.A.i K




MSC: Remembering
K




4. Amicrobe is commonly defined as:
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a. a virus that requires a microscope to be seen
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b. a bacteriumthat requires amicroscope to be seen
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c. asingle-
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cellular prokaryote that requires a microscopexto be seen
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d. a multicellular eukaryote that requires a microscope tobe se en
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e. a living organismthat requires a microscope to bexseen
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ANS: E K DIF: Easy REF: 1.1 K TOP: I.A.i |I.A.ii K K K




MSC: Remembering
K




5. Which one of the following statements regarding microbial cellsxisxNOT true?
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a. Microbial cells acquire food, gain energy toxbuild themselves, and respo nd to
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environmental change. K

, b. Mostxsingle-
celled organisms requirexa microscope to render them visible, but some bact
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erial cells arexlarge enough to bexseen with naked eyes.
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c. Microbes function as individual entities. K K K K




d. Many microbes formcomplex multicellular assemblages.
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e. Viruses are not considered asxmicrobial cells.
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ANS: C K DIF: Easy REF: 1.1 K TOP: I.A.i |I.A.ii
K K K




MSC: Remembering
K




6. Which of the following statements is FALSE?
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a. Axgenome is the total genetic information contained in an organism’s chromosomal DNA.
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b. If a microbe’sxgenomexincludes genes for nitrogenase, that microbe probably can fix
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nitrogen.
c. BycomparingDNAsequences of different organisms,wexcanfigure outxhowclosely rela
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ted they are. K K




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




MSC: Remembering
K




7. The first cellular genomes to be sequenced were thoseof:
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a. humans d. prions
b. bacteria e. fungi
c. viruses

ANS: B K DIF: Easy REF: 1.1 K TOP: I.B.i K




MSC: Remembering
K




8. Theenvironment of earlyEarthmay have contained all ofthe following EXCEPT:
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a. ferrous iron d. oxygen
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b. methane e. hydrogen gas K




c. ammonia
ANS: D K DIF: Easy
REF: Special Topic 1.1TOP: II.D MSC:
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Remembering
K




9. Thedevelopment ofthe theoryofthe ―RNAworld‖ resulted fromthediscoveryof:
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a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: D K DIF: Medium
REF: Special Topic 1.1TOP: II.D MSC:
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Remembering
K




10. Whichmicrobes may resemble those of the earliestlife forms?
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a. archaea d. cyanobacteria
b. photosynthetic algae e. protists K




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




Remembering
K




11. Earlymetabolismmay have been catalyzed by:
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a. DNA d. aminoxacids