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WorksheetsMicrobiology
Total questions: 22
Worksheet time: 22mins
Name
Class
Date
1.
Which best explains how a virus affects other organisms?
a)
Viruses increase the survival of other organisms.
b)
Viruses immediately destroy all cells they come in contact with.
c)
Viruses live and reproduce in between the cells of other organisms.
d)
Viruses invade the cells of other organisms, using them to reproduce.
2.
Which is true about viruses?
a)
Each virus has its own seasonal activity.Viruses increase the survival of other organisms.
b)
Each virus is transmitted through the air.
c)
Each virus has its own shape and structure.
d)
Each virus is transmitted through poor sanitation
3.
How do viruses cause disease?
a)
by secreting toxins
b)
by producing excess waste
c)
by damaging or killing cells
d)
by competing with healthy cells for nutrients
4.
The Anopheles mosquito transmits the parasite Plasmodium to humans. Plasmodium causes malaria. In this situation, which is the vector of the disease?
a)
Anopheles mosquito
b)
Plasmodium
c)
human
d)
malaria
5.
Which would most likely contribute to antimicrobial resistance?
a)
an increased number of health care facilities
b)
overcrowding and poor sanitation in urban areas
c)
creation of new varieties of vaccinations and medicines
d)
providing more education and training for medical
6.
Which is the easiest way for a person to prevent microbial infections?
a)
Avoid contact with animals.
b)
Isolate themselves at home.
c)
Sterilize everything in the home.
d)
Wash hands frequently with hot water and soap.
7.
Which is the most likely reason for a decline in antibiotic use?
a)
Antibiotics have severe health side effects.
b)
Companies find antibiotics too expensive to produce.
c)
Most health insurance does not cover treatment with antibiotics.
d)
Bacterial infections have become resistant to present antibiotic treatment.
8.
Which characteristic makes bacteria suitable for scientific research of disease?
a)
They are multicellular.
b)
They reproduce rapidly.
c)
They keep virus populations under control.
d)
They grow in four stages allowing growth control.
9.
Which best explains why more than 300 million people in Asia are infected with malaria each year?
a)
There is no way to protect people against the disease.
b)
The parasites that cause malaria lack the ability to resist antibiotics.
c)
The house fly contaminates food with infectious bacteria that cause malaria.
d)
Mosquitos are becoming resistant to insecticides and continue to carry the disease.
10.
How does the reproductive potential of bacteria affect illnesses caused by bacteria?
a)
long generation time results in many bacteria
b)
short generation time results in many bacteria
c)
long generation time results in only a few bacteria
d)
short generation time results in only a few bacteria
11.
Which best explains why antibiotics are ineffective in treating viral infections?
a)
Viruses destroy the antibiotic.
b)
Antibiotics only kill living cells.
c)
Antibiotics increase the rate of viral growth.
d)
Viruses escape antibiotics by hiding in cells.
12.
Which best compares a virus to a bacterium?
a)
A virus is a large, living particle, and a bacterium is a large, living cell.
b)
A virus is a tiny, nonliving particle, and a bacterium is a large, living cell.
13.
What is most unique about E. coli?
a)
It is a bacteria that causes illness in humans.
b)
It is a bacteria that has caused outbreaks through contaminated food.
c)
It is harmless in animals’ intestines, but if ingested may cause illness.
14.
Which is the best method for preventing a parasitic disease?
a)
vaccination
b)
wearing a mask
c)
limiting physical contact with others
d)
avoiding contaminated food and water
15.
Which explains why a fungus attaches to a host?
a)
The fungus provides hydration to the host.
b)
The fungus acquires nutrients from the host.
c)
The fungus injects the host with a toxin when it attaches.
d)
The fungus cannot survive without another living organism.
16.
Which is true regarding bacterial and viral infections?
a)
Bacterial infections are treated with antibiotics, while viral infections can be prevented through use of vaccines.
b)
Viral infections are treated with vaccines, while bacterial infections are prevented through use of antibiotics.
c)
Viral infections are treated with antibiotics, while bacterial infections are treated with vaccines.
d)
Both viral infections and bacterial infections are treated with vaccines.
17.
An amoeba frequently causes an infection in hikers who drink untreated water. Which precaution should hikers take while hiking?
a)
taste test the water before drinking
b)
filter or boil the water before drinking
c)
check the pH of the water before drinking
d)
check the color of the water before drinking
18.
How can a single bacterium grow and reproduce exponentially?
a)
It reproduces sexually.
b)
It reproduces asexually.
c)
It reproduces through spores.
d)
It reproduces using a host cell.
19.
Which leads to the conclusion that strep throat is a bacterial infection?
a)
Strep throat is treated with vaccines.
b)
Strep throat is treated with antibiotics.
c)
A strep infection will go away without being treated.
d)
A person who has strep throat can never have it again.
20.
Humans with HIV can transmit the HIV virus to other humans even though they do not show the symptoms of the disease. Which term best describes the unaffected individual?
a)
carrier
b)
contagion
c)
mutagen
d)
vector
21.
Which helps humans to resist an infectious disease?
a)
heredity
b)
immunity
c)
pathogens
d)
vectors
22.
Why can a person catch a cold many times?
a)
Changes in weather conditions can cause a person to get a cold.
b)
People do not develop an immunity to viruses and can be infected by the same virus again and again.
c)
There are many kinds of viruses that cause colds and the person may be infected by different viruses each time.
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