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Chapter 7 Microorganism

Total questions: 94

Worksheet time: 2hrs 41mins

Name
Class
Date
1.
Which of the following is an example of a harmful microorganism?
a)
Fungi used as antibiotics
b)
Ecoli on food that makes people sick
c)
Bacteria found in yogurt.
d)
Microorganisms helping dead matter to decay
2.
Which of the following statements are true?
a)
All microorganisms are bad
b)
All microorganisms are good
c)
Some microorganisms are harmful, while some can be helpful
d)
Microorganisms are too small to do anything to anyone
3.
Yogurt contains harmful bacteria.
a)
True
b)
False
4.
Are microorganisms helpful or harmful?
a)
Helpful
b)
Harmful
c)
Both
d)
Neither
5.
Yeast makes bread, rolls and cakes rise.
a)
True
b)
False
6.
A piece of bread has a tiny spot of mold growing on it. Is it safe to eat?
a)
Yes
b)
No
7.

Yeast is used for making bread. Yeast is a

a)

plant.

b)

spice.

c)

fungi.

d)

bacteria.

8.

Which microorganisms listed below can be harmful?

a)

bacteria

b)

fungi

c)

protists

d)

all of the above

9.
Yogurt and cheese  can be produced from ___________.
a)
Bacteria
b)
Virus
c)
Protozoa
d)
Algae
10.
The smallest microorganism on earth is known as  _____________
a)
a virus
b)
bacteria
c)
algae
d)
fungi
11.

Which statement is NOT true?

a)

Microorganisms help dead things decay.

b)

Microorganisms only live in soil.

c)

Microorganisms cause disease.

d)

Microorganisms are used to make cheese.

12.
Which of these microorganisms is considered harmful? 
a)
Bacteria in yogurt
b)
Fungus in antibiotics
c)
Yeast in bread
d)
Mold on fruit
13.

Diagram shows the food for a teenager at tea time.

Which of the following microorganisms is used to produce the food?

a)

Yeast

b)

Virus

c)

Bacteria

d)

Protozoa

14.

Diagram shows two types of food.

Which of the following microorganisms is used to produce the food?

a)

Yeast

b)

Virus

c)

Bacteria

d)

Protozoa

15.

Karen wants to make a soft bread for her daughter for breakfast.

Which microorganism is used?

a)

Bacteria

b)

Mucor

c)

Protozoa

d)

Yeast

16.

Dead plants and animals in the soil are broken down into humus by the efforts of ......

a)

bacteria only in the soil.

b)

Viruses in the soil.

c)

Fungi and viruses in the soil.

d)

bacteria and fungi in the soil.

17.

Mark three fields involved with the use of microorganisms

a)

sport

b)

industry

c)

agriculture

d)

medicine

18.
Which of the following statements are true?
a)
All microorganisms are bad
b)
All microorganisms are good
c)
Some microorganisms are harmful, while some can be helpful
d)
Microorganisms are too small to do anything to anyone
19.
A tiny, nonliving particle that invades and then reproduces inside a living cell.
a)
Bacteria
b)
Virus
c)
Protist
d)
Fungi
20.

_______________ are parasites, which means they can only survive inside the cells of other living things.

a)

Viruses

b)

Protozoa

c)

Algae

d)

Fungi

21.

What is Malaria is caused by?

a)

Protozoa

b)

Virus

c)

Algae

d)

Bacteria

22.

Which microorganisms have the ability to undergo photosynthesis process.

a)

Fungi

b)

Algae

c)

Virus

d)

Bacteria

23.

What conclusion can you make based on the diagram above?

a)

Microorganisms move

b)

Microorganisms reproduce

c)

Microorganisms breathe

d)

Microorganisms grow

24.

Most microorganisms cannot be seen without a ___________________.

a)

binocular

b)

smartphone

c)

telescope

d)

microscope

25.

Yeast is used to make _______________.

a)

doughnut

b)

bun

c)

bread

d)

all of the above

26.

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.

27.

Some microorganism helps dead things (plants and animals) _________________.

a)

alive

b)

decay

c)

healthy

d)

reproduce

28.

Yeast is a type of ____________ that people use to make bread.

a)

Bacteria

b)

Algae

c)

Protozoa

d)

Fungi

29.
_________________ bacteria are in your _________________ to help digest food.
a)
Helpful; throat
b)
Helpful; stomach
c)
Harmful; esophagus
d)
Harmful; lungs
30.
Which is not an example of a harmful microorganism?
a)
Mold growing on a kitchen sponge
b)
Bacteria found in yogurt
c)
Bacteria that causes turberculosis
d)
Salmonella on uncooked chicken
31.

The type of corona virus that is currently causing pandemic worldwide is

a)

SARS

b)

MERS

c)

COVID-12

d)

COVID-19

32.

Organisms that cannot be seen with unaided eyes are?

a)

Micrones

b)

Microbials

c)

Microorganisms

d)

Microbiology

33.

Helps to digest the food in your stomach.

a)

Fungi

b)

Algae

c)

Yeast

d)

Bacteria

34.

_____________ can be many different sizes ranging from microscopic single celled yeasts used in bread making to macroscopic fungi which contain many cells such as moulds, mushrooms, and toadstools.

a)

Protozoa

b)

Fungi

c)

Yeast

d)

Algae

35.

_____________ are single-celled spherical, spiral or rod shaped organisms.

a)

Yeast

b)

Algae

c)

Penicillin

d)

Bacteria

36.

________________ come in many different sizes from microscopic single celled diatoms used in toothpaste to macroscopic alga which contain many like seaweed.

a)

Algae

b)

Fungi

c)

Protozoa

d)

Yeast

37.

Which observation supports the claim that microorganisms are helpful to ecosystems?

a)

Microorganism are to small to been seen without special equipment.

b)

Microorganism need water and energy to survive.

c)

Millions of microorganism can often be found in soil.

d)

Microorganisms break down dead plants and animals, making nutrients available.

38.

Some microorganism are harmful when they enter other living things and cause living things to ______________.

a)

Grow quickly

b)

Get sick

c)

Reproduce

d)

Produce Energy

39.

An organism that gets energy by using dead organisms, nonliving materials, or waste as food.

a)

Decomposer

b)

Microorganism

c)

Microscope

d)

Beneficial

40.

A scientific tool used to see small objects more clearly.

a)

Microorganism

b)

Decomposer

c)

Beneficial

d)

Microscope

41.

A single-cell fungus

a)

Health

b)

Decomposer

c)

Microorganism

d)

Yeast

42.

Are all microorganisms that live on and in us harmful?

a)

Yes

b)

No

43.

Cells are the smallest things that exist.

a)

True

b)

False

44.

Molecules are smaller than cells.

a)

True

b)

False

45.

All living things are made of cells.

a)

True

b)

False

46.

Some organisms are made of only one cell.

a)

True

b)

False

47.

Which are bigger: humans or microorganisms?

a)

humans

b)

microorganisms

48.

Mushrooms are a type of fungi

a)

True

b)

False

49.

Is mold on food unsafe to eat?

a)

No

b)

Yes

50.

Can fungus also cause other types of skin diseases?

a)

Yes

b)

No

51.

What are the shapes of plant cells

a)

Circles

b)

Squares

c)

Rectangles

d)

Triangles

52.

Micro means....

a)

tiny

b)

large

c)

science

d)

living

53.
A protist that acts like an animal in most ways is called 
a)
decomposer
b)
amoeba
c)
bacteria
d)
cells
54.
Break down dead matter so it can be recycled 
a)
microorganism
b)
bacteria
c)
decomposers
d)
oxygen
55.
First decomposer to attack a tree is called ______________.
a)
amoeba
b)
fungi
c)
bacteria
d)
woodpecker
56.
One of the first decomposers to work on dead matter is called
a)
mold
b)
worm
c)
beetle. 
d)
euglena
57.

Bacteria is known as__________________ in an ecosystem when feeding on dead organisms.

a)

Decomposers

b)

Herbivore

c)

Pathogens

d)

Infections

58.

Which observation supports the claim that microorganisms are helpful to ecosystems?

a)

Microorganism are to small to been seen without special equipment.

b)

Microorganism need water and energy to survive.

c)

Millions of microorganism can often be found in soil.

d)

Microorganisms break down dead plants and animals, making nutrients available.

59.

What is a food chain?

a)

The flow of energy from one thing to another

b)

The way animals eat each other

c)

The way the sun makes everything

d)

How the plants grow

60.
What is a producer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
61.
What is a consumer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
62.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
63.
What do Herbivores eat? 
a)
Plants ONLY 
b)
Animals ONLY
c)
Plants AND Animals
64.

What do plants need to make their own food?

a)

Sun, Water, and Animals

b)

Sun, Coke, and Soil

c)

Sun, Water, and Soil

d)

Nothing at all

65.

An example of a predator:

a)

shark

b)

mouse

c)

rabbit

66.

An example of prey:

a)

lion

b)

mouse

c)

shark

67.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
68.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
69.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
70.
Which type of consumer eats meat and plants?
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Plants
71.
True/False
Food webs show you everything an animal eats. Food chains show you one thing.
a)
True
b)
False
72.
Who does the owl get energy from? 
a)
Grass
b)
Grasshopper
c)
Mouse
d)
Ow
73.
What is a decomposer? 
a)
Organism that creates their own food.
b)
Organism that eat other organisms for energy
c)
Organism that eat other dead organisms
74.

This organism is most likely

a)

A primary consumer

b)

A secondary consumer

c)

A decomposer

d)

A producer

75.

Which of the following animals are herbivores?

I Goat

II Bear  

III Lion  

IV Squirrel  

a)

I and II

b)

I and IV

c)

II and III

d)

III and IV

76.

What are plants and animals that get their energy from eating other things?

a)

Producers

b)

Consumers

c)

decomposers

d)

herbivores

77.

Which of the following animals are carnivores?

    I Tiger

 II Eagle    

III Rabbit      

 IV Chicken  

a)

I and II

b)

I and IV

c)

II and III

d)

III and IV

78.

Which type of consumer is always a primary consumer?

a)

Herbivore

b)

Omnivore

c)

Carnivore

d)

Producer

79.

Several food chains linked together make up

a)

food web

b)

food pyraid

c)

ecosystem

80.

_________ is a model that shows the path of energy as it flows from living to another.

a)

food chain

b)

model

c)

food web

81.

Energy goes from

a)

producers to consumers

b)

consumers to producers

c)

decomposers to producers

82.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
83.

Look carefully at the image. Which organism is tertiary consumer?

a)
Wolf
b)

bird

c)

lizard

d)

grasshopper

84.

There are 5 units of pesticide in the leaves, if the beetle eats 5 leaves, how many units of pesticides inside the beetle?

a)

10 units

b)

30 units

c)

25 units

d)

50 units

85.

Plants are called producers because they can produce their own:

a)

music

b)

food

c)

air

86.

A living thing that breaks down dead plants and animals - such as, fungi, worms, bacteria, is:

a)

decomposer

b)

food web

c)

omnivore

87.

An animal that is hunted and eaten by another animal:

a)

predator

b)

prey

c)

scavenger

88.
What does a food chain contain? Choose ALL correct answers.
a)
consumer
b)
producer
c)
decomposer
d)
all of the above
89.
What is the name of the process where the remains of living things rot, decay or break down?
a)
Disintegration
b)
Dissolve
c)
Decomposition
d)
Recycling
90.
Which best describes how decomposers help support life in an ecosystem?
a)
Decomposers add nutrients to the soil.
b)
Decomposers provide a habitat in the ecosystem.
c)
Decomposers add producers to the ecosystem.
d)
Decomposers provide energy for consumers.
91.
Which is an example of a decomposer?
a)
a hawk
b)
a mouse
c)
a flower
d)
a mushroom
92.

Are fungi and bacteria same?

a)

Yes

b)

No

93.

Decomposers get _____________ and energy while breaking down dead organisms and animal wastes.

a)

nutrients     

b)

helium

c)

oxygen

d)

carbon dioxide

94.

Identify the decomposer in the image given.

a)

bacteria 

b)

virus

c)

fungi  

d)

protozoa

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