WorksheetsBacteria and Viruses Pre-test
Total questions: 18
Worksheet time: 9mins
Name
Class
Date
1.
Which type of cell fights off harmful bacteria?
a)
white blood cell
b)
red blood cell
c)
skin cell
d)
nerve cell
2.
Bacteria can cause infections in:
a)
People
b)
Animals
c)
Plants
d)
All of the above
3.
Which system in our bodies fights infections?
a)
the digestive system
b)
the immune system
c)
the cardiovascular system
d)
all of the above
4.
Which disease is caused by a virus, NOT bacteria?
a)
scarlet fever
b)
pneumonia
c)
flu
d)
tuberculosis
5.
By itself, a virus is
a)
a living animal
b)
a type of plant
c)
lifeless
d)
a harmful infection
6.
Which disease is causes by bacteria, NOT a virus?
a)
typhoid fever
b)
the common cold
c)
measles
d)
influenza
7.
Viruses can infect
a)
plants
b)
animals
c)
people
d)
all of the above
8.
The viruses that cause colds usually attack the cells in the
a)
stomach and intestines
b)
nose and throat
c)
brain
d)
legs and feet
9.
Antibiotics can cure infections caused by
a)
viruses
b)
bacteria
c)
viruses or bacteria
d)
anything
10.
Vaccines are made from
a)
dead or weakened viruses
b)
fungi
c)
allergens
d)
strong, active viruses
11.
A vaccine makes people immune to a disease by causing their bodies to make
a)
bacteria
b)
virus-fighting antibodies
c)
antibiotics
d)
more protective skin cells
12.
You are more likely to catch a cold if you
a)
eat food that is not properly cooked
b)
go out on a cold day without a jacket
c)
stand in an elevator with a sneezing stranger
d)
swim in a cold lake
13.
Bacteria are
a)
single-celled organisms
b)
small plants
c)
a type of virus
d)
small animals
14.
Where do bacteria live?
a)
only in water
b)
only inside living organisms
c)
only in the soil
d)
almost everywhere
15.
Bacteria reproduce when each cell divides into
a)
2 identical cells
b)
2 different cells
c)
5 identical cells
d)
5 different cells
16.
Different bacteria do different things, including
a)
helping people digest their food
b)
breaking down dead organisms
c)
turning milk into cheese
d)
all of the above
17.
What would you need to see a virus?
a)
Just your own eyes
b)
a telescope
c)
a very strong microscope
d)
3-D glasses
18.
A virus becomes active when it
a)
is in the open air
b)
enters water
c)
enters a living cell
d)
wakes up in the morning
100 %
