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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
containing specific T lymphocytes.
B
combining with pathogens to inactivate them.
C
bringing bacteria to infect healthy cells.
D
preparing the immune system to recognize and destroy pathogens.
2) Which event listed is most likely to cause a widespread influenza outbreak?
A
Winter precipitation is increased due to global warming.
B
The northern portion of the country is affected by winter-like weather patterns.
C
People do not have immunity to a new strain of the influenza virus.
D
The influenza virus is recognized by host immune systems.
3) When a virus invades a host the most common threat is
A
stimulation of muscle tone in the heart.
B
production of viral fluids in the bloodstream.
C
destruction of cells by viral reproduction.
D
fermentation of acids in the digestive system.
4) Viruses and bacteria are both microscopic and can both cause disease. Viruses differ from bacteria in that all viruses
A
need a living host cell to reproduce.
B
can be destroyed by antibiotics.
C
cause insect transmitted diseases.
D
have cell walls.
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
mutates much more rapidly.
B
is more easily transmitted.
C
is less dangerous.
D
is much smaller.
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
Viral diseases respond to antibiotics, bacterial diseases do not.
B
Neither responds to antibiotics.
C
Both respond to antibiotics.
D
Bacterial diseases respond to antibiotics, viral diseases do not.
7) Some viruses are responsible for cancer in humans. This is due to
A
fermentation of acids in the digestive system.
B
production of viral fluids in the bloodstream.
C
stimulation of muscle tone in the heart.
D
destruction of cells by viral reproduction.
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
introducing random deadly mutations into the host cell.
B
changing the host cell into a virus.
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 less 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
The number of people having the flu would be greater than countries that had access to a vaccine.
D
DO NOT CLICK !!!!!
10) In which cycle does the virus to remain dormant?
A
lysogenic cycle
B
lytic cycle
C
protein synthesis
D
cell cycle
*select an answer for all questions
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