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Multiple Choice Quiz
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1

Chemoautotrophs:
A)purple nonsulfur bacteria
B)includes the nitrifiers
C)most pathogens are in this group
D)cyanobacteria
2

Photoautotrophs
A)purple nonsulfur bacteria
B)includes the nitrifiers
C)most pathogens are in this group
D)cyanobacteria
3

Chemoheterotrophs
A)purple nonsulfur bacteria
B)includes the nitrifiers
C)most pathogens are in this group
D)cyanobacteria
4

Photoheterotrophs
A)purple nonsulfur bacteria
B)includes the nitrifiers
C)most pathogens are in this group
D)cyanobacteria
5

Which of the following are Gram-positive bacteria that produce many antibiotics?
A)Streptomyces
B)Salmonella
C)Anabena
D)Treponema
E)Pseudomonas
6

Which of the following are Gram-negative bacteria and have polar flagella?
A)Streptomyces
B)Salmonella
C)Anabena
D)Treponema
E)Pseudomonas
7

Which of the following are Gram-negative bacteria and related to E. coli?
A)Streptomyces
B)Salmonella
C)Anabena
D)Treponema
E)Pseudomonas
8

Tuberculosis is caused by the spirochete, Treponema pallidum.
A)true
B)false
9

Borrelia bergdorferi is the cause of Lyme disease, a tick-borne disease.
A)true
B)false
10

Which of the following is a receptor that plays a role in the infection of human cells by HIV?
A)gp 120
B)CD4
C)CCR5
D)CXCR4
E)both c and d
11

Which of the following is the protein making up the spikes on HIV?
A)gp 120
B)CD4
C)CCR5
D)CXCR4
E)both c and d
12

A major outbreak of what disease in 1918-19 killed 21 million people?
A)rabies
B)influenza
C)AIDS
D)hepatitis B
E)ebola
13

Another name for this disease is viral encephalomyelitis.
A)rabies
B)influenza
C)AIDS
D)hepatitis B
E)ebola
14

_______ are tiny, naked pieces of RNA that are significant plant pathogens.
A)Virolds
B)Prions
C)Hepatitis viruses
D)Virons
E)none of the above
15

Oxygen began to accumulate in the early earth atmosphere when
A)methanogens began to colonize the ocean.
B)cyanobacteria evolved.
C)plants evolved.
D)fungi evolved.
E)viruses evolved.
16

A major difference between prokaryotic and eukaryotic cells is that
A)most prokaryotes lack a cell wall, while most eukaryotes have one.
B)all prokaryotes lack a nucleus, while most eukaryotes have one.
C)all prokaryotes lack a nucleus, while all eukaryotes have one.
D)only the prokaryotes can reproduce asexually.
E)both a and d
17

Gram-negative bacteria have what advantage over gram-positive bacteria?
A)Gram-negative bacteria are better able to survive environmental changes than are gram-positive bacteria.
B)Gram-negative bacteria are able to survive longer without water than can gram-positive bacteria.
C)Gram-negative bacteria can metabolize a wider variety of nutritional materials than can gram-positive bacteria.
D)Gram-negative bacteria are able to resist antibiotics that attack the cell wall while gram-positive bacteria are susceptible to these drugs.
E)Gram-negative bacteria have longer life cycles than do gram-positive bacteria.
18

Endospores function to
A)help the organism survive periods of drought.
B)transmit genetic information from one bacterium to another.
C)help the organism survive exposure to high temperatures.
D)all of the above
E)both a and c
19

At the end of conjugation, both of the cells involved
A)form endospores.
B)perish.
C)develop organelles.
D)have a copy of the plasmid DNA.
E)are able to degrade most antibiotics.
20

HIV infects which of the following cells?
A)suppresser T-cells
B)T4 lymphocytes
C)neutrophils
D)basophils
E)platelets
21

Glycoproteins are
A)proteins with attached sugars that are a component of animal virus spikes.
B)factors that initiate viral DNA replication.
C)the product of viral infection by the host cell.
D)released by infected animal cells to help neighboring cells resist the virus.
E)none of the above
22

The end result of the viral lytic cycle is
A)lysis of the infected cell.
B)immunity of the host cell to further viral infection.
C)the release of new viruses.
D)both a and b
E)both a and c
23

A common cause of the common cold is the
A)influenza virus.
B)polio virus.
C)rhino virus.
D)HIV.
E)ebola virus.





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