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Worksheets5th Grade: Microorganisms
Total questions: 55
Worksheet time: 59mins
Name
Class
Date
1.
Are microorganisms helpful or harmful?
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
2.
Yogurt contains harmful bacteria.
a)
True
b)
False
3.
Which two examples below are helpful bacteria?
a)
Medicine and Cherry Coke
b)
Yogurt and bread
c)
Salmonella and E. Coli
d)
Water and germs
4.
Algae and plankton are helpful microorganisms.
a)
True
b)
False
5.
Harmful bacteria produces cheese.
a)
True
b)
False
6.
Yeast makes bread, rolls and cakes rise.
a)
True
b)
False
7.
What is Penicillin (medicine) made from?
a)
Water
b)
Sugar
c)
Mold
d)
Algae
8.
Mold helps dead things (plants, animals)...
a)
Grow
b)
Decay
c)
Sleep
d)
Reproduce
9.
Some fungus can provide food.
a)
True
b)
False
10.
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
11.
Helpful bacteria can sometimes cause Strep Throat.
a)
True
b)
False
12.
Harmful viruses can cause:
a)
Colds
b)
Influenza
c)
Both of the above
d)
Neither of the above
13.
Fungi can cause skin diseases and kill crops.
a)
True
b)
False
14.
Examples of fungi can include:
a)
Warts and zits
b)
Sneezing and itching
c)
Headaches and hand cramps
d)
Ringworm and athlete's foot
15.
A piece of bread has a tiny spot of mold growing on it. Is it safe to eat?
a)
Yes
b)
No
16.
Microorganisms can be found:
a)
The the ocean, inside and outside your body
b)
On plants and animals
c)
In medicine and your food
d)
All of the above
17.
Toxic algae is:
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
18.
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.
19.
Anti-bacterial agents can include:
a)
creams, lotions, water
b)
hot water, soap,
c)
lotion, soap, cold water
d)
tissues, hand sanitizer, soap
20.
_________________ bacteria are in your _________________ to help digest food.
a)
Helpful; throat
b)
Helpful; stomach
c)
Harmful; esophagus
d)
Harmful; lungs
21.
Are microorganisms helpful or harmful?
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
22.
A paramecium is a one-celled animal. Which of the following MUST be true about the paramecium?
a)
its one cell does everything it needs to live
b)
it can only live inside the cells of other living things
c)
it is the smallest living things
d)
it causes dangerous diseases
23.
Why is a microscope needed to view cells?
a)
to separate cells from each other
b)
to make cells look bigger than they are
c)
to make cells look smaller than they are
d)
to hold the cells still so they can be seen
24.
Marco went to the doctor and was given a vaccine containing a virus. When Marco was surprised the vaccine contained a virus, the doctor explained that viruses and other microorganisms...
a)
only cause sickness to people
b)
can have benefits to people
c)
are rarely useful to people
d)
should not be placed in the body
25.
What would a standard microscope best be used to identify?
a)
the size of craters on the Moon
b)
the crystal structure of sugar
c)
the distance a ship is from shore
d)
a bacteria cell in a drop of pond water
26.
Identify a statement that shows how bacteria are NOT helpful to humans.
a)
Bacteria break down dead plants and animals
b)
Bacteria break down water, soil, and air pollution.
c)
Bacteria cause inflammation of tissues and often a fever.
d)
Bacteria break down the milk protein to create cheese.
27.
How are multi-celled and single-celled organisms different?
a)
multi-celled organisms need energy to survive, while single-celled orgranisms need no energy to survive
b)
single-celled organisms can be seen without using a microscope, while multi-celled organisms are microscopic
c)
multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions within one cell
d)
single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions
28.
Which best explains why humans are multicellular organisms?
a)
human cells are too small to function alone
b)
human cells join together to form one large cell
c)
humans need many cells to carry out life processes
d)
humans have many systems that perform the same function
29.
Students are using a microscope to observe the microorganisms found in a sample of water from the local pond. Most of the microorganisms that they expect to find will be
a)
disease-causing in humans
b)
harmless to humans
c)
beneficial for humans to drink
d)
harmful to the ecosystem
30.
All of the following are used for safety when investigating cells in a science lab except
a)
protective eyewear
b)
protective clothing
c)
gloves
d)
microscopic tools
31.
Many herbivores have bacteria in their stomachs, which break down the tough cells walls of plant cells. How might you describe these bacteria?
a)
beneficial
b)
harmful
c)
neutral
d)
none of these
32.
Which of the following could you best examine with a hand lens?
a)
a single protist
b)
a mold colony
c)
five bacteria cells
d)
15 red blood cells
33.
Microbes are ____________ organisms.
a)
hazardous
b)
nonliving
c)
living
d)
large
34.
Microbes are so small that we need a ___________ to see them.
a)
stethoscope
b)
horoscope
c)
telescope
d)
microscope
35.
Microbes come in different _______ and sizes.
a)
shapes
b)
colors
c)
quantities
d)
parts
36.
There are _____________ types of bacteria.
a)
one
b)
two
c)
three
d)
four
37.
The different types of bacteria include...
a)
mold and fungi
b)
chickenpox and flu
c)
Penicillium and Dermatophyte
d)
spirals, rods, balls
38.
_____________ are smaller than bacteria and can sometimes live in bacteria!
a)
algae
b)
fungi
c)
virus
d)
microbes
39.
_______________ are spread from one person to another.
a)
bacteria
b)
fungus
c)
mold
d)
virus
40.
______________ are the largest of all microbes.
a)
fungi
b)
algae
c)
mold
d)
bacteria
41.
Some antibiotics are made by _________________.
a)
virus
b)
bacteria
c)
fungi
d)
blue-green algae
42.
Some bacteria that is helpful in cooking are _______________________ and __________________.
a)
peanut butter and jelly
b)
milk and butter
c)
oil and vinegar
d)
yogurt and cheese
43.
A protist that acts like an animal in most ways is called
a)
decomposer
b)
amoeba
c)
bacteria
d)
cells
44.
Break down dead matter so it can be recycled
a)
microorganism
b)
bacteria
c)
decomposers
d)
oxygen
45.
Living things too small to be seen with just our eyes
a)
microorganisms
b)
mold
c)
decomposers
d)
soil
46.
A microorganism that can be helpful or harmful to humans
a)
bacteria
b)
fungi
c)
air
d)
water
47.
A tool used to see tiny cells
a)
binoculars
b)
magnifying glass
c)
telescope
d)
microscope
48.
First decomposer to attack a tree is called ______________.
a)
amoeba
b)
fungi
c)
bacteria
d)
woodpecker
49.
One of the first decomposers to work on dead matter is called
a)
mold
b)
worm
c)
beetle.
d)
euglena
50.
A _________________ is a protist that carries out photosynthesis in the sunlight.
a)
mold
b)
bacteria
c)
euglena
d)
worm
51.
Organisms called ______________ are larger than bacteria and can be found in lakes and ponds.
a)
cell
b)
microbe
c)
protists
d)
germs
52.
This is one of the smallest microorganism
a)
bacteria
b)
protists
c)
amoeba
d)
euglena
53.
Euglena is a protest that has a __________________ that helps it move to get food in the dark.
a)
fins
b)
legs
c)
tail
d)
arms
54.
An ____________________ is a protist that acts like an animal.
a)
amoeba
b)
euglena
c)
fungi
d)
mold
55.
This protists changes its body shape to catch food.
a)
Euglena
b)
mold
c)
fungi
d)
Amoeba
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