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 x# x# x# x#


b. noncellular particles that take over the metabolism of a cell to generate mor
x# x# x# x# x# x# x# x# x# x# x# x# x


e virusparticles
# x#

c. pathogens that replicate in complex growth media x# x# x# x# x# x#


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




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


MSC: Remembering
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2. Analysisxof DNA sequences reveals:
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a. the ancient convergence of two cell types, i.e., prokaryotes and euka
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ryotes
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b. prokaryotes and eukaryotesxevolved from a common ancestral cell
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c. thatxbacteria share common ancestor with archaea, but notxwith euk
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arya
d. prokaryotes are cells with a nucleus x# x# x# x# x#


e. the genome of Haemophilus influenzaexhas about 2 billion base pairs
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ANS: B x # DIF: Easy REF: x # 1.1 TOP: I.A | I.B x# x# x#


MSC: Remembering
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3. Which of these 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 x # DIF: Easy REF: x # 1.1 TOP: I.A.i x#


MSC: Remembering
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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-
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cellular prokaryote that requires a microscopexto be seen
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d. a multicellular eukaryote that requires a microscope to be se
x# x# x# x# x# x# x# x# x# x

en#

e. a living organism that requires a microscope to bexseen
x# x# x# x# x# x# x# x#




ANS: E x # DIF: Easy REF: x # 1.1 TOP: I.A.i | I.A.iix# x# x#


MSC: Remembering
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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
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nd to
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environmental change. x#

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


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


MSC: Remembering
x#




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
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DNA.
b. If a microbe’sxgenomexincludes genes for nitrogenase, that microbe probably can fix
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nitrogen.
c. By comparing DNA sequences of different organisms, wexcan figure outxhow closely
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related they are.
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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 x # DIF: Easy REF: x # 1.1 TOP: I.B x #


MSC: Remembering
x#




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


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


MSC: Remembering
x#




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


a. ferrous iron x# d. oxygen
b. methane e. hydrogen gas x#


c. ammonia
ANS: D x # DIF: Easy
REF: Special Topic 1.1TOP: II.D M
x# x# x# x # x#


SC: Rememberingx#




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 x # DIF: Medium
REF: Special Topic 1.1TOP: II.D M
x# x# x# x # x#


SC: Rememberingx#




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


a. archaea d. cyanobacteria
b. photosynthetic algae e. protists x#


c. viruses
ANS: A x # DIF: Medium
REF: Special Topic 1.1TOP: II.D M
x# x# x# x # x#


SC: Rememberingx#




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