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Viruses Quiz
Test Description: This test covers ALCOSO #8 on the topic of viruses.
Instructions: Answer all questions to get your test result.
1) Vaccines prevent disease by
A
combining with pathogens to inactivate them.
B
preparing the immune system to recognize and destroy pathogens.
C
bringing bacteria to infect healthy cells.
D
containing specific T lymphocytes.
2) Which event listed is most likely to cause a widespread influenza outbreak?
A
People do not have immunity to a new strain of the influenza virus.
B
The northern portion of the country is affected by winter-like weather patterns.
C
Winter precipitation is increased due to global warming.
D
The influenza virus is recognized by host immune systems.
3) When a virus invades a host the most common threat is
A
fermentation of acids in the digestive system.
B
stimulation of muscle tone in the heart.
C
destruction of cells by viral reproduction.
D
production of viral fluids in the bloodstream.
4) Viruses and bacteria are both microscopic and can both cause disease. Viruses differ from bacteria in that all viruses
A
have cell walls.
B
need a living host cell to reproduce.
C
cause insect transmitted diseases.
D
can be destroyed by antibiotics.
5) Vaccination requirements vary from virus to virus. Some diseases require one vaccination that last for many years. Other diseases like the flu have vaccines that only last one season or year. The flu vaccine last a short time because the flu virus
A
is much smaller.
B
mutates much more rapidly.
C
is more easily transmitted.
D
is less dangerous.
6) Some diseases are caused by bacteria, protists, invertebrates or viruses. How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?
A
Both respond to antibiotics.
B
Neither responds to antibiotics.
C
Bacterial diseases respond to antibiotics, viral diseases do not.
D
Viral diseases respond to antibiotics, bacterial diseases do not.
7) Some viruses are responsible for cancer in humans. This is due to
A
production of viral fluids in the bloodstream.
B
destruction of cells by viral reproduction.
C
stimulation of muscle tone in the heart.
D
fermentation of acids in the digestive system.
8) Some viruses must insert their genetic material into the host cell's DNA. This is accomplished thanks to enzymes. The virus benefits from this action by
A
changing the host cell into a virus.
B
introducing random deadly mutations into the host cell.
C
causing the host cell to produce new viruses.
D
acquiring the traits of the host cell.
9) If a country could not get access to a flu vaccine which of the following would occur?
A
The number of people having the flu would be greater than countries that had access to a vaccine.
B
The number of people having the flu would be the same as countries that had access to a vaccine.
C
DO NOT CLICK !!!!!
D
The number of people having the flu would be less than countries that had access to a vaccine.
10) In which cycle does the virus to remain dormant?
A
cell cycle
B
lytic cycle
C
protein synthesis
D
lysogenic cycle
*select an answer for all questions
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