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Viruses
Test Description: Please complete the review game about viruses.
Instructions: Answer all questions to get your test result.
1) Vaccines prevent disease by
A
combining with pathogens to inactivate them
B
containing specific T lymphocytes
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
People do not have immunity to a new strain of the influenza virus.
B
The influenza virus is recognized by host immune systems.
C
The northern portion of the country is affected by winter-like weather patterns.
D
Winter precipitation is increased due to global warming.
3) How might a disease-causing virus be similar to a computer virus?
A
neither are dangerous
B
both are small
C
it is difficult for them to spread
D
neither impact humans
4) Viruses have a core made up of everything listed here except
A
genetic material
B
RNA
C
DNA
D
plasmids
5) All of the following are considered classification groups of viruses except
A
lysogenic viruses
B
DNA viruses
C
retroviruses
D
RNA viruses
6) 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
production of viral fluids in the bloodstream.
D
destruction of cells by viral reproduction.
7) Viruses and bacteria are both microscopic and can both cause disease. Viruses differ from bacteria in that all viruses
A
can be destroyed by antibiotics
B
cause insect transmitted diseases
C
need a living host cell to reproduce
D
have cell walls
8) 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
Neither responds to antibiotics
B
Both respond to antibiotics
C
Viral diseases respond to antibiotics, bacterial diseases do not.
D
Bacterial disease respond to antibiotics, viral disease do not.
9) Some viruses are responsible for cancer in humans. This is due to
A
destruction of cells by viral reproduction.
B
production of viral fluids in the bloodstream.
C
stimulation of muscle tone in the heart.
D
fermentation of acids in the digestive system.
10) 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
acquiring the traits of the host cell
B
introducing random deadly mutation into the host cell
C
causing the host cell to produce new viruses
D
changing the host cell into a virus
*select an answer for all questions
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