TEST BANK FOR Microbiology: An Evolving Science Sixth Edition by Joan L. Slonczewski, John W. Foster, Erik R. Zinser ISBN: 978-1324033523 COMPLETE GUIDE ALL CHAPTERS COVERED 100% VERIFIED A+ GRADE ASSURED!!!!NEW LATEST UPDATE!!!!!

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,CHAPTER 1: Microbial Life: Origin and Discovery
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MULTIPLE CHOICE
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1. Virusesxare:
a. infectiousxagents that infect multi-cellular organisms cn cn cn cn



b. noncellular particles that take over the metabolism of a cell to generate mor e
cn cn cn cn cn cn cn cn cn cn cn cn cn cn



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



d. cellular particles thatxbelongxto the archaea domain
cn cn cn cn cn



e. microbesxthat consistxof lipid membrane enclosed genomes cn cn cn cn cn




ANS: B c n DIF: Easy REF: 1.1 c n TOP: I.A | I.B c n cn cn



MSC: Remembering
c n




2. Analysisxof DNA sequences reveals: cn cn cn



a. the ancient convergence of two cell types, i.e., prokaryotes and euka r
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yotes
b. prokaryotes and eukaryotesxevolved from a common ancestral cell cn cn cn cn cn cn cn



c. thatxbacteria share common ancestor with archaea, but notxwith euk ar cn cn cn cn cn cn cn cn cn


ya
d. prokaryotes are cells with a nucleus cn cn cn cn cn



e. the genome of Haemophilus influenzaexhas about 2 billion base pairs
cn cn cn cn cn cn cn cn cn




ANS: B c n DIF: Easy REF: 1.1 c n TOP: I.A | I.B c n cn cn



MSC: Remembering
c n




3. Which of these groups are considered to be microbes butxNOT considered toxbe cells?
cn cn cn cn cn cn cn cn cn cn cn cn



a. viruses d. protists
b. bacteria e. filamentousxfungi
c. archaea
ANS: A c n DIF: Easy REF: 1.1 c n TOP: I.A.i c n



MSC: Remembering
c n




4. A microbe is commonly defined as:
cn cn cn cn cn



a. a virus that requires a microscope to be seen
cn cn cn cn cn cn cn cn



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



c. a single-cn


cellular prokaryote that requires a microscopexto be seen
cn cn cn cn cn cn cn



d. a multicellular eukaryote that requires a microscope to be se e
cn cn cn cn cn cn cn cn cn cn


n
e. a living organism that requires a microscope to bexseen
cn cn cn cn cn cn cn cn




ANS: E c n DIF: Easy REF: 1.1 c n TOP: I.A.i | I.A.ii cn cn cn



MSC: Remembering
c n




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 n
cn cn cn cn cn cn cn cn cn cn



d to cn


environmental change. cn

, b. Mostxsingle-
celled organisms requirexa microscope to render them visible, but some b
cn cn cn cn cn cn cn cn cn cn



acterial cells arexlarge enough to bexseen with naked eyes.
cn cn cn cn cn cn cn cn


c. Microbes function as individual entities. cn cn cn cn



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



e. Viruses are not considered asxmicrobial cells.
cn cn cn cn cn




ANS: C c n DIF: Easy REF: 1.1 c n TOP: I.A.i | I.A.ii
cn cn cn



MSC: Remembering
c n




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 DN
cn cn cn cn cn cn cn cn cn cn cn


A.
b. If a microbe’sxgenomexincludes genes for nitrogenase, that microbe probably can fix
cn cn cn cn cn cn cn cn cn cn



nitrogen.
c. By comparing DNA sequences of different organisms, wexcan figure outxhow closely r
cn cn cn cn cn cn cn cn cn cn cn



elated they are. cn cn



d. Fred Sanger developed the firstxapplicable DNA sequencing method.
cn cn cn cn cn cn cn



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




ANS: E c n DIF: Easy REF: 1.1 c n TOP: I.B c n



MSC: Remembering
c n




7. The first cellular genomes to be sequenced were those of:
cn cn cn cn cn cn cn cn cn



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



MSC: Remembering
c n




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



a. ferrous iron cn d. oxygen
b. methane e. hydrogen gas cn



c. ammonia
ANS: D c n DIF: Easy
REF: Special Topic 1.1TOP: II.D MS
cn cn cn c n cn



C: Remembering
cn




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



a. archaea d. ribozymes
b. prions e. endosymbionts
c. bacteria
ANS: D c n DIF: Medium
REF: Special Topic 1.1TOP: II.D MS
cn cn cn c n cn



C: Remembering
cn




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



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



c. viruses
ANS: A c n DIF: Medium
REF: Special Topic 1.1TOP: II.D MS
cn cn cn c n cn



C: Remembering
cn




11. Early metabolism may have been catalyzed by:
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a. DNA d. aminoxacids