Biology (Mader), 10th Edition

Chapter 20: Viruses, Bacteria, and Archaea

Post-Test

1
The study of viruses has contributed much to our understanding of _____.
A)disease
B)genetics
C)the characteristics of living things
D)All of the above
2
Viruses always have at least _____.
A)a nucleus
B)a cell wall
C)an inner core of nucleic acid
D)None of these
3
Which of the following is not characteristic of a prokaryote?
A)cell wall
B)DNA
C)nucleus
D)plasma membrane
4
Prokaryotes reproduce _____.
A)sexually
B)by binary fission
C)by conjugation
D)All of these
5
The primary source of genetic variability in prokaryotes is _____.
A)mutations
B)transduction
C)conjugation
D)transformation
6
Which of the following is a problem associated with antibiotic therapy?
A)Misuse of antibiotics increases the number of antibiotic-resistant strains.
B)People can die if given an antibiotic to which they are allergic.
C)The use of antibiotics can prevent natural immunity from occurring.
D)All of these
7
Antibiotics _____.
A)selectively kill bacteria
B)should be used whenever someone feels sick
C)only kill off the disease causing bacteria
D)All of these
8
The _____ have a number of mechanisms to survive in environments that are high in salt.
A)halophiles
B)methanogens
C)thermoacidophiles
D)cyanobacteria
9
The archaea which are found living in extremely hot acidic environments such as hot springs, geysers, thermal vents and around volcanoes are known as _____.
A)cyanobacteria
B)aquificales
C)thermoacidophiles
D)methanogens
10
The activity of the _____ contributes to the greenhouse effect and global warming.
A)halophiles
B)methanogens
C)cyanobacteria
D)None of these
11
Archaea and eukarya _____.
A)initiate transcription in the same manner
B)have similar types of RNA
C)share some of the same ribosomal proteins not found in bacteria
D)All of these
12
Cyanobacteria have symbiotic relationships with _____ to form lichens.
A)liverworts
B)corals
C)fungi
D)All of these
13
Which of the following is not a bacterial disease in humans?
A)Lyme disease
B)Tuberculosis
C)Gonorrhea
D)Hepatitis
14
Which of the following characteristics of living things do viruses have?
A)Metabolism
B)Cellular organization
C)Evolution
D)Independent reproduction
15
Viral DNA and capsids are assembled to produce hundreds of viral particles during the _____ stage of the lytic cycle.
A)attachment
B)biosynthesis
C)maturation
D)release
16
Viral diseases _____.
A)should be treated with antibiotics
B)include syphilis, tuberculosis, tetanus and the bubonic plague
C)can be prevented with vaccinations
D)All of these
17
RNA animal viruses that have a DNA stage are called _____.
A)bacteriophages
B)retroviruses
C)viroids
18
Endospores _____.
A)are a means of reproduction
B)can survive for hundreds of years
C)cannot be killed
D)All of these
19
Prokaryotes can escape detection by our immune system if they have a _____.
A)capsule and/or slime layer
B)plasma membrane
C)cell wall
D)nucleus
20
Surgical instruments are sterilized by autoclaving so that _____, which form when conditions are unfavorable, are destroyed.
A)plasmids
B)slime layers
C)pili
D)endospores
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