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WorksheetsMicro Organisms
Total questions: 50
Worksheet time: 29mins
Name
Class
Date
1.
Most microorganisms cannot be seen without a...
a)
microscope
b)
magnifying lens
c)
telescope
d)
x-ray machine
2.
Which is a true statement?
a)
All microorganisms are harmful.
b)
All microorganisms are beneficial.
c)
Some microorganisms are harmful while others are beneficial.
d)
Microorganisms are beneficial only to humans.
3.
What is the cause of the common cold?
a)
bacteria
b)
cold temperatures
c)
sneezing and coughing
d)
viruses
4.
What is a way that you can protect yourself from microorganisms that can live on food?
a)
Store uncooked meats in a refrigerator or freezer.
b)
Wash hands with soap and water before and after handling food.
c)
Cook chicken and other raw meats thoroughly.
d)
All of the above
5.
Which best describes where you would find microorganisms?
a)
in ponds, lakes, and oceans.
b)
in animals, plants, and humans.
c)
on food that has rotted.
d)
everywhere around us.
6.
______________ helps us digest our food and they produce needed vitamins.
a)
Bacteria
b)
Fungi
c)
Protozoa
d)
Algae
7.
Yogurt and cheese can be produced from ___________.
a)
Bacteria
b)
Virus
c)
Protozoa
d)
Algae
8.
The smallest microorganism on earth is known as _____________
a)
a virus
b)
bacteria
c)
algae
d)
fungi
9.
Algae and plankton are helpful microorganisms.
a)
True
b)
False
10.
Harmful bacteria produces cheese.
a)
True
b)
False
11.
What is Penicillin (medicine) made from?
a)
Water
b)
Sugar
c)
Mold
d)
Algae
12.
Mold helps dead things (plants, animals)...
a)
Grow
b)
Decay
c)
Sleep
d)
Reproduce
13.
Some fungus can provide food.
a)
True
b)
False
14.
Salmonella and E. Coli can be found on ________________ and ________________ so it is important to cook all meat to kill bacteria.
a)
Waffles and scrambled eggs
b)
Broccoli and steamed corn
c)
Eggs and raw chicken
d)
Sushi and Toaster Strudel
15.
Helpful bacteria can sometimes cause Strep Throat.
a)
True
b)
False
16.
Fungi can cause skin diseases and kill crops.
a)
True
b)
False
17.
Examples of fungi can include:
a)
Warts and zits
b)
Sneezing and itching
c)
Headaches and hand cramps
d)
Ringworm and athlete's foot
18.
Toxic algae is:
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
19.
Anti-bacterial means:
a)
active against bacteria.
b)
feeds bacteria and helps it grow.
c)
has no effect on bacteria.
d)
sometimes works against bacteria, but not always.
20.
Anti-bacterial agents can include:
a)
creams, lotions, water
b)
hot water, soap,
c)
lotion, soap, cold water
d)
tissues, hand sanitizer, soap
21.
Yeast is used to make...
a)
rolls
b)
cakes
c)
pizza crust
d)
all of the above
22.
One celled organism with a nucleus
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
23.
One celled organisms with no nucleus
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
24.
Tiny hair-like structures uses for movement and gathering food by single celled organisms
a)
Flagella
b)
Pseudopods
c)
Cilia
d)
Cytoplasm
25.
A whip like structure used for movement by single celled organisms
a)
Flagella
b)
Pseudopods
c)
Cilia
d)
Cytoplasm
26.
Arm-like structures that extend from a cell and surround food (seen in amoebas)
a)
Flagella
b)
Pseudopods
c)
Cilia
d)
Cytoplasm
27.
A disease, common in tropical areas of the world, that is caused by the the protist plasmodium
a)
E. Coli
b)
Black Plague
c)
Malaria
d)
Smallpox
28.
A disease that killed nearly ⅓ of the world’s population in the 1300s
a)
E. Coli
b)
Black Plague
c)
Malaria
d)
Smallpox
29.
A carrier of the bacteria yersinia pestis. They live on rats and transmitted disease
a)
Anopheles Mosquitoes
b)
Fleas
c)
Mushrooms
d)
Amoeba
30.
This insect transmits the protist that causes malaria
a)
Anopheles Mosquitoes
b)
Fleas
c)
Mushrooms
d)
Amoeba
31.
The protist that causes malaria in humans
a)
Plasmodium
b)
Yersinia Pestis
c)
Hyphae
d)
Smallpox
32.
Many protists in the ocean produce this, which helps helps all life on earth survive
a)
Water
b)
Bacteria
c)
Cilia
d)
Oxygen
33.
This is the brain of the cell and is found in all cells except bacteria
a)
Nucleus
b)
Cell Wall
c)
Cytoplasm
d)
Endoplasmic Reticulum
34.
This is the bacteria that caused the Black Death
a)
Plasmodium
b)
Yersinia Pestis
c)
Hyphae
d)
Smallpox
35.
Athletes foot is caused by this type of organism
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
36.
A positive use of mold is for the creation of this type of medicine that fights bacteria
a)
Vaccines
b)
Antibiotics
c)
Anti-fungal cream
d)
White blood cells
37.
This is a type of fungus you can eat
a)
Mushrooms
b)
Mold
c)
Yogurt
d)
Pickles
38.
This scientist discovered that mold can kill bacteria
a)
Edward Jenner
b)
Molly Watson
c)
Alexander Fleming
d)
Anton Leuwenhook
39.
A microbe that is not living, but reproduces by attaching and using the machinery in a cell.
a)
Bacteria
b)
Protists
c)
Fungi
d)
Virus
40.
Viruses often do this when they leave a cell.
a)
Antibodies
b)
Kill the cell
c)
Cilia
d)
Flagella
41.
These help protect your cells from viruses by clamping onto the surface of the cell and preventing the virus from getting in
a)
Antibodies
b)
Antibiotics
c)
White blood cells
d)
Flagella
42.
These can help your body produce antibodies to stop the spread of viruses.
a)
Vaccines
b)
Antibiotics
c)
Anti-fungal cream
d)
Red Blood Cells
43.
Ed. Jenner infected a boy with this, which helped him produce antibodies for the smallpox virus.
a)
E. Coli
b)
Black Plague
c)
Malaria
d)
Cowpox
44.
White blood cells do this.
a)
Attach to cells so they can't be infected by a virus
b)
Destroy infected cells
c)
Explode cells by reproducing inside of them
d)
Work with bacteria to form disease fighting microbes
45.
Most microorganisms cannot be seen without a...
a)
microscope
b)
telescope
c)
magnifying lens
d)
x-ray machine
46.
Yogurt and cheese can be produced from ___________.
a)
Protozoa
b)
Bacteria
c)
Virus
d)
Algae
47.
The smallest microorganism on earth is known as _____________
a)
algae
b)
bacteria
c)
a virus
d)
fungi
48.
______________ helps us digest our food and they produce needed vitamins.
a)
Bacteria
b)
Protozoa
c)
Fungi
d)
Algae
49.
Yeast is used to make...
a)
rolls
b)
pizza crust
c)
cakes
d)
all of the above
50.
Which is the optimum (best) temperature for bacterial growth?
a)
75C
b)
5C
c)
63C
d)
37C
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