TEST BANK FOR Microbiology: An Evolving Science 6th Edition by Joan L. Slonczewski , John W. Foster , Erik R. Zinser.COMPLETE GUIDE ALL CHAPTERS COVERED 100% VERIFID A+ GRADE ASSURED!!!!! NEW LATEST UPDATE!!!!!

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,CHAPTER 1: Microbial Life: Origin and Discovery
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MULTIPLE CHOICE
5%




1. Virusesxare:
a. infectiousxagents that infect multi-cellular organisms 5% 5% 5% 5%



b. noncellular particles that take over the metabolism of a cell to generate mor e
5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%



virusparticles
c. pathogens that replicate in complex growth media 5% 5% 5% 5% 5% 5%



d. cellular particles thatxbelongxto the archaea domain
5% 5% 5% 5% 5%



e. microbesxthat consistxof lipid membrane enclosed genomes 5% 5% 5% 5% 5%




ANS: B 5 % DIF: Easy REF: 1.1 5 % TOP: I.A | I.B 5 % 5% 5%



MSC: Remembering
5 %




2. Analysisxof DNA sequences reveals: 5% 5% 5%



a. the ancient convergence of two cell types, i.e., prokaryotes and euka r
5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%


yotes
b. prokaryotes and eukaryotesxevolved from a common ancestral cell
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c. thatxbacteria share common ancestor with archaea, but notxwith euk a 5% 5% 5% 5% 5% 5% 5% 5% 5%


rya
d. prokaryotes are cells with a nucleus 5% 5% 5% 5% 5%



e. the genome of Haemophilus influenzaexhas about 2 billion base pairs
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ANS: B 5 % DIF: Easy REF: 1.1 5 % TOP: I.A | I.B 5 % 5% 5%



MSC: Remembering
5 %




3. Which of these groups are considered to be microbes butxNOT considered toxbe cells?
5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%


a. viruses d. protists
b. bacteria e. filamentousxfungi
c. archaea
ANS: A 5 % DIF: Easy REF: 1.1 5 % TOP: I.A.i 5 %



MSC: Remembering
5 %




4. A microbe is commonly defined as:
5% 5% 5% 5% 5%


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
5% 5% 5% 5% 5% 5% 5%



d. a multicellular eukaryote that requires a microscope to be se
5% 5% 5% 5% 5% 5% 5% 5% 5% 5%


en
e. a living organism that requires a microscope to bexseen
5% 5% 5% 5% 5% 5% 5% 5%




ANS: E 5 % DIF: Easy REF: 1.1 5 % TOP: I.A.i | I.A.ii 5% 5% 5%



MSC: Remembering
5 %




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 5%


environmental change. 5%

, 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. 5% 5% 5% 5%



d. Many microbes form complex multicellular assemblages.
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e. Viruses are not considered asxmicrobial cells.
5% 5% 5% 5% 5%




ANS: C 5 % DIF: Easy REF: 1.1 5 % TOP: I.A.i | I.A.ii 5% 5% 5%



MSC: Remembering
5 %




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 D
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NA.
b. If a microbe’sxgenomexincludes genes for nitrogenase, that microbe probably can fix
5% 5% 5% 5% 5% 5% 5% 5% 5% 5%


nitrogen.
c. By comparing DNA sequences of different organisms, wexcan figure outxhow closely r
5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%



elated they are. 5% 5%



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 5 % DIF: Easy REF: 1.1 5 % TOP: I.B 5 %



MSC: Remembering
5 %




7. The first cellular genomes to be sequenced were those of:
5% 5% 5% 5% 5% 5% 5% 5% 5%


a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: B 5 % DIF: Easy REF: 1.1 5 % TOP: I.B.i 5 %



MSC: Remembering
5 %




8. The environment of early Earth may have contained all of the following EXCEPT:
5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5% 5%


a. ferrous iron 5% d. oxygen
b. methane e. hydrogen gas 5%



c. ammonia
ANS: D 5 % DIF: Easy
REF: Special Topic 1.1TOP: II.D MS
5% 5% 5% 5 % 5%



C: Remembering
5%




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 5 % DIF: Medium
REF: Special Topic 1.1TOP: II.D MS
5% 5% 5% 5 % 5%



C: Remembering
5%




10. Which microbes may resemble those of the earliest life forms?
5% 5% 5% 5% 5% 5% 5% 5% 5%


a. archaea d. cyanobacteria
b. photosynthetic algae e. protists 5%



c. viruses
ANS: A 5 % DIF: Medium
REF: Special Topic 1.1TOP: II.D MS
5% 5% 5% 5 % 5%



C: Remembering
5%




11. Early metabolism may have been catalyzed by:
5% 5% 5% 5% 5% 5%


a. DNA d. aminoxacids