Chapter 18:
Viruses and Bacteria
1.
Which of the following diseases is most likely associated with the replication of a lytic virus?
a.
shingles
b.
influenza
c.
HIV
d.
warts
Hint
2.
Which of these statements is true?
a.
In most situations, polio viruses infect only brain cells.
b.
A virus can replicate at any time in any location.
c.
Every virus has its own specifically shaped attachment protein.
d.
A T4 phage can only infect a human cell.
Hint
3.
Bacteria that are killed by oxygen are called __________.
a.
obligate aerobes
b.
obligate anaerobes
c.
archaebacteria
d.
saprophytes
Hint
4.
Which of these is NOT a step in the lytic cycle?
a.
provirus formation
b.
lysis and release
c.
replication
d.
assembly
Hint
5.
Which of these statements is true?
a.
All viral plant diseases are fatal to the host plant.
b.
Plant viruses infect the host plant through a lysogenic cycle.
c.
Increased growth and yield is always the result of viruses infecting host plants.
d.
Viruses can be unintentionally spread from plant to plant through the use of an infected cutting tool.
Hint
6.
Which of these organisms would most likely be able to successfully live in the Dead Sea?
a.
archaebacteria
b.
Bacillus anthracis
c.
eubacteria
d.
viruses
Hint
7.
What is a saprophyte?
a.
proteins with no nucleic acid
b.
an organism that obtains food from living organisms
c.
a blue-green bacteria
d.
an organism that feeds on dead organisms
Hint
8.
What part of the bacterial cell is this line pointing to?
a.
a flagella
b.
a chromosome
c.
a pilus
d.
a plasmid
Hint
9.
Which of these processes do bacteria use to reproduce?
a.
exocytosis
b.
binary fission
c.
chemosynthesis
d.
Gram staining
Hint
10.
Viral DNA that becomes integrated into the chromosome of the host cell is __________.
a.
a bacteriophage
b.
a capsid
c.
a provirus
d.
a lysis
Hint
11.
One reason that smallpox has been successfully eradicated is because __________.
a.
it always infects birds and horses
b.
it only infects humans
c.
it never infects humans
d.
it only infects birds
Hint
12.
Which of these is an example of a helical virus?
a.
b.
c.
d.
Hint
13.
Which human disease may occur when chicken pox viruses enter the lytic cycle?
a.
shingles
b.
herpes simplex II
c.
hepatitis B
d.
herpes simplex I
Hint
14.
What shape category do bacteria belong to if they are spherical?
a.
bacillus
b.
spirillum
c.
conicus
d.
coccus
Hint
15.
What is the virus responsible for the common cold?
a.
Escherichia coli
b.
adenovirus
c.
poliovirus
d.
rabies
Hint
