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WorksheetsMicroorganism
Total questions: 30
Worksheet time: 50mins
Name
Class
Date
1.
Why are bacteria necessary to life?
a)
used in nitrogen fixation
b)
they are decomposers
c)
they help human digestion
d)
all of these
2.
Nitrogen-fixing bacteria are important because...
a)
they are decomposers
b)
they are salt lovers
c)
they provide protection for plants from diseases
d)
they make nitrogen available to plants in form they can use
3.
How do bacterium reproduce?
a)
binary fission
b)
sexually by the lytic cycle
c)
releasing spores
d)
through mitosis
4.
All viruses contain this.
a)
nucleus and DNA or RNA
b)
DNA or RNA and protein coat
c)
protein coat and nucleus
d)
cell wall and DNA or RNA
5.
Fungi are able to make their own food by photosynthesis.
a)
True
b)
False
6.
This microorganism is shaped like a slipper
a)
Amoeba
b)
Paramecium
c)
Euglena
d)
Volvox
7.
This microorganism has characteristics of both animal and plant.
a)
Amoeba
b)
Paramecium
c)
Euglena
d)
Volvox
8.
What microorganism makes cheese?
a)
Fungi
b)
Virus
c)
Bacteria
d)
Algae
9.
Which of the following help bread rise?
a)
algae
b)
bacteria
c)
yeast
d)
fungi
10.
The diagram shows an animal cell. Which structure controls what enters and exits the cell?
a)
1
b)
2
c)
3
d)
4
11.
In which organelle is the DNA of the cell located?
a)
lysosome
b)
mitochondrion
c)
nucleus
d)
vacuole
12.
How do bacteria help our bodies function?
a)
They make our muscles stronger.
b)
They help to digest food.
c)
They circulate in our blood and help carry oxygen.
d)
They make our skin clean.
13.
What important function do microorganisms play in an ecosystem?
a)
They produce food from sunlight
b)
They reduce the number of big animals
c)
They decompose dead organisms
d)
They help to clean the air.
14.
Which instrument would you use to study microorganisms?
a)
thermometer
b)
microscope
c)
telescope
d)
kaleidoscope
15.
Harmful microorganisms can be controlled by
a)
washing hands with water
b)
washing hands with soap and water
c)
sharing food with your friends
d)
leaving food out of the refrigerator for long periods of time
16.
In what conditions do most bacteria grow best?
a)
warm and moist
b)
cool and dry
c)
warm and dry
d)
cool and moist
17.
A disease causing organism
a)
pathogen
b)
poison
c)
vaccine
18.
All bacteria are
a)
unicellular
b)
multicellular
c)
eukaryotic
19.
Bacteria are prokaryotes which means they
a)
have a nucleus on their capsule
b)
do not contain a nucleus
c)
can live in environments with and without oxygen
20.
True or False: Another name for a bacteria is a pathogen
a)
False
b)
True
21.
The flu is caused by
a)
bacteria
b)
virus
22.
Bacteria cells are exactly like animal cells
a)
True
b)
False
23.
Live bacteria are found in milk, cheese and yogurt
a)
True
b)
False
24.
The name of a bacteria can be described by its shape
a)
False
b)
True
25.
Viruses are...
a)
prokaryotic
b)
eukaryotic
c)
non-living
d)
endospores
26.
Cell in which a virus reproduces
a)
endospore
b)
host cell
c)
bacteriophage
d)
plasmid
27.
Viruses are _______.
a)
producers
b)
consumers
c)
parasites
d)
decomposers
28.
poison produced by some bacteria
a)
toxin
b)
oxygen
c)
methane
d)
vitamin K
29.
Bacteria are used in
a)
farming
b)
the medical industry
c)
the food industry
d)
all of these
30.
decomposition is an important role of
a)
protozoans
b)
algae
c)
plants
d)
fungi
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