Test bank for Microbiology: An Evolving Science 5th Edition by Joan L. Slonczewski, John W. Foster, Erik R. Zinser – All Chapters Covered – 100% Verified & Complete Exam Guide

TEST BANK

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




28

,
,CHAPTER 1: Microbial Life: Origin and Discovery


MULTIPLE CHOICE

1. Viruses are:
a. infectious agents that infect multi-cellular organisms
b. noncellular particles that take over the metabolism of a cell to
generate more virus particles
c. pathogens that replicate in complex growth media
d. cellular particles that belong to the archaea domain
e. microbes that consist of lipid membrane enclosed genomes
ANS: B DIF: Easy REF: 1.1 TOP: I.A | I.B
MSC: Remembering

2. Analysis of DNA sequences reveals:
a. the ancient convergence of two cell types, i.e., prokaryotes
and eukaryotes
b. prokaryotes and eukaryotes evolved from a common
ancestral cell
c. that bacteria share common ancestor with archaea, but not
with eukarya
d. prokaryotes are cells with a nucleus
e. the genome of Haemophilus influenzae has about 2 billion
base pairs
ANS: B DIF: Easy REF: 1.1 TOP: I.A | I.B
MSC: Remembering

3. Which of these groups are considered to be microbes but NOT considered to be
cells?
a. viruses d. protists
b. bacteria e. filamentous
fungi
c. archaea
ANS: A DIF: Easy REF: 1.1 TOP: I.A.i
MSC: Remembering

4. A microbe is commonly defined as:
a. a virus that requires a microscope to be seen
b. a bacterium that requires a microscope to be seen
c. a single-cellular prokaryote that requires a
microscope to be seen
d. a multicellular eukaryote that requires a microscope
to be seen
e. a living organism that requires a microscope to be
seen
ANS: E DIF: Easy REF: 1.1 TOP: I.A.i | I.A.ii
MSC: Remembering

5. Which one of the following statements regarding microbial cells is NOT true?
a. Microbial cells acquire food, gain energy to build themselves,
and respond to
environmental change.

, b. Most single-celled organisms require a microscope to render them
visible, but some
bacterial cells are large enough to be seen with naked eyes.
c. Microbes function as individual entities.
d. Many microbes form complex multicellular assemblages.
e. Viruses are not considered as microbial cells.
ANS: C DIF: Easy REF: 1.1 TOP: I.A.i | I.A.ii
MSC: Remembering

6. Which of the following statements is FALSE?
a. A genome is the total genetic information contained in an organism’s
chromosomal DNA.
b. If a microbe’s genome includes genes for nitrogenase, that microbe
probably can fix nitrogen.
c. By comparing DNA sequences of different organisms, we can figure out
how closely
related they are.
d. Fred Sanger developed the first applicable DNA sequencing method.
e. Fred Sanger completed the sequences of Haemophilus influenzae.
ANS: E DIF: Easy REF: 1.1 TOP: I.B
MSC: Remembering

7. The first cellular genomes to be sequenced were those of:
a. humans d. prions
b. bacteria e. fungi
c. viruses
ANS: B DIF: Easy REF: 1.1 TOP: I.B.i
MSC: Remembering

8. The environment of early Earth may have contained all of the following EXCEPT:
a. ferrous iron d. oxygen
b. methane e. hydrogen
gas
c. ammonia
ANS: D DIF: Easy REF: Special Topic
1.1 TOP: II.D MSC: Remembering

9. The development of the theory of the ―RNA world‖ resulted from the discovery of:
a. archaea d. ribozymes
b. prions e. endosymbion
ts
c. bacteria
ANS: D DIF: Medium REF: Special Topic
1.1 TOP: II.D MSC: Remembering

10. Which microbes may resemble those of the earliest life forms?
a. archaea d. cyanobacter
ia
b. photosynthetic algae e. protists
c. viruses
ANS: A DIF: Medium REF: Special Topic
1.1 TOP: II.D MSC: Remembering

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