Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

respiratory system

Total questions: 133

Worksheet time: 2hrs 40mins

Name
Class
Date
1.

Which of the following is the main function of the respiratory system?

a)

Obtains oxygen and remove carbon dioxide from the body

b)

Transports oxygen and nutrients to the body cells

c)

Protects the body from invading organisms

2.

Which of the following is the correct pattern of airflow inhalation?

a)

NASAL CAVITY-PHARYNX-TRACHEA-BRONCHI-BRONCHIOLES-LUNGS

b)

NASAL CAVITY-PHARYNX-ALVEOLI-BRONCHI-BRONCHIOLES-LUNGS

c)

NASAL CAVITY-THROAT-LARYNX-WINDPIPE-BRONCHI-LUNGS

3.

Which of the following is the main muscle for breathing?

a)

Intercostal Muscle

b)

Diaphragm

c)

Sternocleidomastoid

4.

During inhalation, contraction of the diaphragm and the intercostal muscle cause the  lung /thoracic cavity to __________ and the air pressure in lungs to _____________.

a)

Contract; Decrease

b)

Expand: Increase

c)

Contract; Increase

5.

What is the anatomically correct name of the windpipe?

a)

Pharynx

b)

Larynx

c)

Trachea

6.

Which of the following structures is NOT part of the upper respiratory tract?

a)

lungs

b)

epiglottis

c)

pneumothorax

7.

Which of the following is the function of alveoli in respiration?

a)

Helping the lungs to stay inflated

b)

Gaseous exchange

c)

Relaxation

8.

The cells that make and secrete mucus that protects the lining of the respiratory tract are called:

a)

alveolar cells

b)

goblet cells

c)

pneumothorax

9.

Ventilation (breathing) is a regular, rhythmic process which:

a)

moves air into and out of the lungs

b)

protects the airways by clearing them of mucus or irritants

c)

moves gases from an area of high concentration to an area of lower concentration

10.

Living cells need a continuous supply of oxygen

a)

FACT

b)

BLUFF

11.

Oxygen moves from alveoli to the blood capillaries that line the alveolar walls

a)

FACT

b)

BLUFF

12.

The circulatory system works with the ___________ system to provide our body with oxygen and get rid of CO2 (carbon dioxide).

a)

respiratory

b)

digestive

c)

muscular

d)

skeletal

13.

What type of cells carry oxygen in the blood?

a)

red blood cells

b)

white blood cells

14.
What is tube that is also known as your wind pipe?
a)
esophogus
b)
bronchi
c)
trachea
d)
alveoli
15.
Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 
a)
trachea 
b)
bronchi 
c)
alveoli
d)
diaphragm
16.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
17.

These are the two two main branches from the trachea (one to each lung)

a)

bronchi

b)

alveoli

c)

capillaries

d)

bronchioles

18.
What is the function of the bronchi?
a)
Transport air from nose to lungs
b)
Transport air from trachea to lungs
c)
Transport air from lungs to alveoli
d)
Transport air from alveoli to blood
19.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
20.

What is function of the dome-shaped diaphragm muscle?

a)

This is where gas exchange happens.

b)

Air passes through the diaphragm on the way to the lungs.

c)

It attaches to the lungs and contracts and relaxes to help in breathing.

21.

What are the main organs of the respiratory system that allow us to breathe and for gas exchange to happen?

a)

diapragm

b)

lungs

c)

trachea

22.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

o break down food and absorb nutrients

c)

to remove oxygen from the body and deliver carbon dioxide

23.

tiny sacs of lung tissue specialized for the movement of gases between air and blood.

a)

lungs

b)

bronchi

c)

alveoli

d)

diaphragm

24.

tiny, hairlike projections in the airway that move in a wavelike manner.

a)

alveoli

b)

cilia

c)

trachea

d)

lungs

25.

the windpipe; a passage through which air moves in the respiratory system.

a)

trachea

b)

lungs

c)

larynx

d)

bronchi

26.

What word best describes the function of the trachea?

a)

Pumping station

b)

Entrance point

c)

Muscle

d)

Passageway

27.

Where does oxygen initially enter into the body?

a)

nose and mouth

b)

eyes

c)

brain

d)

throat

28.

What are the tiny air sacs where gas exchange occurs?

a)

alveoli

b)

bronchi

c)

trachea

d)

bronchioles

29.

What is another name for the upper part of the throat?

a)

bronchioles

b)

pharynx

c)

larynx

d)

alveoli

30.

What are the smaller tubes in the lungs?

a)

epiglottis

b)

alveoli

c)

larynx

d)

bronchioles

31.

What muscle that moves air in and out of the lungs?

a)

diaphragm

b)

ribs

c)

lungs

d)

heart

32.

What part of the respiratory system is your vocal cords?

a)

pharynx

b)

epiglottis

c)

larynx

d)

trachea

33.

What is the major respiratory organ that takes in oxygen and releases carbon dioxide?

a)

ribs

b)

lungs

c)

bronchi

d)

nose

34.
When you breathe, your lungs take in ___ and remove ___. 
a)
air/oxygen
b)
oxygen/carbon dioxide 
c)
carbon dioxide/waste 
d)
waste/air 
35.
Why does your body need to breathe out carbon dioxide?
a)
Without it, the lungs would not function.
b)
It can be harmful if it builds up in the bloodstream.
c)
You need it for your body to survive.
d)
It is delivered to the heart.
36.
What is the main organ in the respiratory system?
a)
Kidney
b)
Heart
c)
Lungs
d)
Diaphragm
37.
When you exercise, your heart beats faster to...
a)
spread oxygen throughout your body more quickly.
b)
make you feel excited.
c)
let you know you're working hard.
38.
Oxygen from the air enters the blood stream at what location?
a)
Cardiac Notch
b)
Pulmonary Vein
c)
Alveoli
d)
Paranasal Sinuses
39.
Which of the following does NOT make up part of the lungs?
a)
Alveoli
b)
Bronchioles
c)
Trachea
d)
Bronchi
40.
What is the main function of the respiratory system?
a)
to provide oxygen and remove carbon dioxide from the body
b)
to bring oxygen to the body
c)
to break down food and absorb nutrients
d)
to remove oxygen from the body and deliver carbon dioxide
41.
As you breathe this contracts and flattens to give your lungs room to fill up with air.
a)
larynx
b)
lung balloon
c)
diaphragm
d)
heart
42.

Alveoli have very thick walls to maximise the distance that gases have to move.

a)

True

b)

False

43.
The air sacs that are covered with capillaries where gas exchange takes place
a)
bronchi
b)
lungs
c)
oxygen
d)
alveoli
44.
Within the lungs, the exchange of oxygen and carbon dioxide occurs between the ___ and the capillaries. 
a)
trachea 
b)
bronchi 
c)
alveoli
d)
diaphragm
45.
What is the function of the bronchi?
a)
Transport air from nose to lungs
b)
Transport air from trachea to lungs
c)
Transport air from lungs to alveoli
d)
Transport air from alveoli to blood
46.

When the gasses are exchanged between the alveoli in the lungs and the capillaries, oxygen enters the blood stream. What happens with this oxygen?

a)

Oxygen in the blood is delivered to the lungs to be exhaled.

b)

Oxygen in the blood is delivered to the nose to be exhaled.

c)

Oxygen in the blood is delivered to the tissues and cells of the body to help make energy.

d)

Oxygen in the blood is a waste that needs to be removed from the boyd.

47.

Cellular Respiration is

a)

when cells inhale oxygen and exhale CO2

b)

when cells use oxygen and nutrients to make all the energy your body needs (CO2 and wastes are created).

c)

when cells use CO2 and nutrients to make all the energy your body needs (Oxygen and wastes are created).

d)

breathing

48.

Why does CO2 build up (or increase) inside your lungs when you hold your breath? (Choose the BEST answer.)

a)

Because the circulatory system is still pumping blood by your lungs.

b)

Because your lung always have CO2 in them.

c)

Because the circulatory system is still pumping blood and delivering CO2 to your lungs, even if you don't exhale it.

d)

Because the circulatory system is still pumping blood and delivering Oxygen to your lungs, oxygen created as waste in cells.

49.
a process that allows the body to get oxygen to burn food for energy and gets rid of carbon dioxide
a)
respiration
b)
emphysema
c)
inhaling
d)
nasal passage
50.
a dome shaped sheet of muscle, the _________, separates the chest from the abdomen
a)
diaphragm
b)
epiglottis
c)
alveoli
d)
bronchial tubes
51.
After air moves through the pharynx it continues downward. The _____, or windpipe, directs the air into 2 separate branches or tubes.
a)
mucus
b)
trachea
c)
larynx
d)
epiglottis
52.
the ____ look like a wasp's nest and is where the exchange of oxygen and carbon dioxide takes places.
a)
alveoli
b)
bronchial tubes
c)
lung
d)
diaphragm
53.
the tubes that go from the trachea into the lungs
a)
alveoli
b)
diaphragm
c)
epiglottis
d)
bronchial tubes
54.
healthy _____ are usually pink in color. You have two of these.
a)
alveoli
b)
epiglottis
c)
lungs
d)
trachea
55.
a chamber behind the nose and mouth that leads to the trachea
a)
pharynx
b)
trachea
c)
epiglottis
d)
larynx
56.
cleans, moistens, and warms the air
a)
trachea
b)
larynx
c)
nasal passage
d)
windpipe
57.
a flap of tissue that closes when we eat so food doesn't not go down the trachea
a)
larynx
b)
pharynx
c)
trachea
d)
epiglottis
58.
known as the voice box
a)
windpipe
b)
larynx
c)
pharynx
d)
epiglottis
59.
the gas known as _______ is needed to stay alive and properly.
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
helium
60.
What is breathed out from our mouth and nose?
a)
carbon dioxide
b)
oxygen
c)
nitrogen
d)
helium
61.

a condition where the alveoli is infected

a)

cystic fibrosis

b)

pneumonia

c)

asthma

d)

emphysema

62.
an inflammation in the bronchial tubes that causes a person to have a nagging cough
a)
bronchitis
b)
emphysema
c)
pneumonia
d)
cystic fibrous
63.
What is the main bone structure that protects the lungs
a)
Vertebrae
b)
Rib cage
c)
Skull
d)
Pelvis
64.
The inner area of the nasal passage where air is warmed and cleaned by cilia and mucous membranes.
a)
Nasal Cavity
b)
Pharynx
c)
Larynx
d)
Trachea
65.
The upper part of the throat between the mouth and the esophagus.
a)
Nasal Cavity
b)
Pharynx
c)
Larynx
d)
Trachea
66.
The voice box, which lies in the front of the throat and is seen on the outside as the Adam's Apple. 
a)
Nasal Cavity
b)
Pharynx
c)
Larynx
d)
Trachea
67.
The main tube through which air passes to and from the lungs, also called the windpipe.
a)
Nasal Cavity
b)
Pharynx
c)
Larynx
d)
Trachea
68.
Tubes that lead to the lungs.
a)
Bronchi 
b)
Lungs
c)
Diaphragm
d)
Alveoli
69.
Organs that contain bronchial tubes, bronchi, and alveoli in which exchange of oxygen and Carbon Dioxide takes place. 
a)
Bronchi 
b)
Lungs
c)
Diaphragm
d)
Alveoli
70.
Muscle that separates the chest and abdominal cavities.
a)
Bronchi 
b)
Lungs
c)
Diaphragm
d)
Alveoli
71.
Grape-like structure that is surrounded by capillaries and needed for gas exchange.  Site of diffusion/gas exchange.
a)
Bronchi 
b)
Lungs
c)
Diaphragm
d)
Alveoli
72.
Pressure decreases, volume increases and air moves in.
a)
inhalation
b)
exhalation
c)
nasal cavity
d)
pharynx
73.
Pressure increases, volume decreases and air moves out.
a)
inhalation
b)
exhalation
c)
nasal cavity
d)
pharynx
74.
Label #1
a)
Nasal Cavity
b)
Larynx
c)
Oral Cavity
d)
Pharynx
75.
Label #2
a)
Nasal Cavity
b)
Larynx
c)
Oral Cavity
d)
Pharynx
76.
Label #11
a)
Nasal Cavity
b)
Larynx
c)
Alveoli
d)
Pharynx
77.
Label #3
a)
Nasal Cavity
b)
Larynx
c)
Oral Cavity
d)
Pharynx
78.
Label #4
a)
Right Lung
b)
Left Lung
c)
Diaphragm
d)
Pharynx
79.
Label #5
a)
Right Bronchus
b)
Left Bronchus
c)
Right Lung
d)
Left Lung
80.
Label #6
a)
Diaphragm
b)
Pharynx
c)
Trachea
d)
Larynx
81.
Label #7
a)
Diaphragm
b)
Pharynx
c)
Trachea
d)
Larynx
82.
Label #8
a)
Diaphragm
b)
Pharynx
c)
Trachea
d)
Larynx
83.

_____ system involves breathing air in and out of the body.

a)

Skeletal

b)

Muscular

c)

Nervous

d)

Respiratory

84.

Breathing air into lungs

a)

Inhalation

b)

Exhalation

85.

Breathing air out of lungs

a)

Inhalation

b)

Exhalation

86.

Region of the nose

a)

Nasal Cavity

b)

Oral Cavity

87.

Region of the mouth

a)

Nasal Cavity

b)

Oral Cavity

88.

Known as the wind pipe

a)

Bronchi

b)

Alveoli

c)

Trachea

89.

The _____ divides into two main sections or branches from the Trachea.

a)

Alveoli

b)

Epiglottis

c)

Bronchi

90.

Which respiratory structure is lined up with rings of cartilage to prevent is from collapsing?

a)

Bronchi

b)

Trachea

c)

Bronchules

91.

How many lungs do humans have?

a)

One

b)

Two

c)

Three

92.

Are the human lungs completely identical?

a)

Yes

b)

No

93.

What are smaller branches that split from the Bronchi?

a)

Epiglottis

b)

Trachea

c)

Bronchules

94.

_____ are the site where Oxygen and Carbon Dioxide exchange inside the lungs.

a)

Alveoli

b)

Trachea

c)

Bronchi

95.

The muscle that contracts and relaxes to force air in or out of the lungs.

a)

Oral Cavity

b)

Diaphragm

c)

Nasal Cavity

d)

Epiglottis

96.

Air that we inhale?

a)

Oxygen

b)

Carbon Dioxide

97.

Air that we exhale?

a)

Oxygen

b)

Carbon Dioxide

98.

What is the main function of the respiratory system?

a)

to remove nitrogen waste from the body

b)

to clean the blood

c)

to break down food and absorb nutrients

d)

to provide oxygen and remove carbon dioxide from the body

99.

What is the main function of the respiratory system?

a)

to remove nitrogen waste from the body

b)

to clean the blood

c)

to break down food and absorb nutrients

d)

to provide oxygen and remove carbon dioxide from the body

100.
Which of the following is a part of the respiratory system?
a)
lungs
b)
stomach
c)
large intestines
d)
heart
101.

When you breathe, your lungs take in ____ and release _____.

a)

air/oxygen

b)

oxygen/carbon dioxide

c)

carbon dioxide/waste

d)

waste/air

102.

What are the name of the the tiny "air sacs" that are found in your lungs where gas exchange occurs ?

a)

bronchi

b)

lungs

c)

oxygen

d)

alveoli

103.

What is the scientific term for the tube that is commonly known as your wind pipe?

a)

esophogus

b)

bronchi

c)

trachea

d)

alveoli

104.

What type of cells transport oxygen in the blood?

a)

red blood cells

b)

white blood cells

c)

neurons

d)

cartilage cells

105.

What is the scientific term for the structure that is commonly known as your voicebox?

a)

larynx

b)

alveoli

c)

brochi

d)

bronchioles

106.

What is the diaphragm?

a)

A muscle located under the lungs that contacts and relaxes during breathing.

b)

Muscle found in the lower leg used to flex the knee.

c)

A muscle that filters blood to remove waste products.

d)

A muscle in the torso to flex the abdomen.

107.

What are bronchi?

a)

connects the brain and spinal cord

b)

connects the right and left cerebral hemispheres of the brain

c)

structures that stores bile used to digest lipids

d)

2 short tubes that branch off of the lower end of the trachea and carry air to the lungs

108.

What is the pharynx?

a)

the voice box that contains the vocal cords

b)

a common passage way for air, food, liquid; commonly called the throat

c)

a structure located in the brainstem

d)

a body tissue that protects the epithelium of a person

109.
Letter D is pointing to which Respiratory organ?
a)
Alveoli
b)
Diaphragm
c)
Lung
d)
Bronchi
110.

The air sacs that are covered with capillaries where gas exchange takes place.

a)

Bronchi

b)

Trachea

c)

Oxygen

d)

Alveoli

111.
The trachea leads to the...
a)
Bronchioles
b)
Bronchi
c)
Esophagus
d)
Pulmonary Vessel
112.
Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area
II. Thin walls
III. Dry surfaces
a)
I and II only
b)
I only
c)
II and III
d)
I, II, and III
113.
a)
A
b)
B
c)
C
d)
D
114.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

to bring oxygen to the body

c)

to break down food and absorb nutrients

d)

to remove oxygen from the body and deliver carbon dioxide

115.
Respiration is the 
a)
Intake of oxygen and release of carbon dioxide over a membrane
b)
Release of energy from food inside cells
c)
Mechanical movement to inhale and exhale air
d)
Feature that enable an animal to survive in its habitat
116.
The movement by diffusion of oxygen and carbon dioxide across a membrane
a)
Ventilation
b)
Breathing
c)
Gas exchange
d)
Respiration
117.

Gas exchange is needed to supply _____________ to cells and remove __________________

a)

carbon dioxide; oxygen

b)

oxygen; food

c)

oxygen; carbon dioxide

d)

carbon dioxide; water

118.
Mechanical movement to inhale and exhale air
a)
Gas Exchange
b)
Respiration
c)
Breathing
d)
Transport
119.

When you breathe, your lungs take in ___ and remove ___.

a)

air/oxygen

b)

oxygen/carbon dioxide

c)

carbon dioxide/waste

d)

waste/air

120.

The air sacs that are covered with capillaries where gas exchange takes place

a)

bronchi

b)

lungs

c)

oxygen

d)

alveoli

121.

What is the site of gas exchange?

a)

alveoli

b)

bronchus

c)

nose

d)

trachea

122.

Which of the following are features of the alveoli that adapt them to gas exchange?

I. High surface area

II. Thin walls

III. Dry surfaces

a)

I and II only

b)

I only

c)

II and III

d)

I, II, and III

123.

What is the name of two main branches from the trachea (one to each lung)?

a)

bronchi

b)

alveoli

c)

capillaries

d)

bronchioles

124.

Given the following structures:

1. alveoli

2. bronchi

3. bronchioles

Which of the following is the correct order in which air would flow after inhalation?

a)

1,2,3

b)

2,1,3

c)

2,3,1

d)

3,2,1

125.

What adaptations does the alveoli have for efficient gas exchange?

a)

thick walls

b)

thin walls

c)

small surface area

126.

what is found around alveoli?

a)

capillaries

b)

pleura

c)

lymphatic nodes

d)

saliva

127.

Diaphragm is

a)

part of lungs

b)

muscle that helps in breathing

c)

throat muscle

d)

structure in bones

128.

During gas exchange what enters from alveoli to the capillaries?

a)

CO2

b)

CO

c)

O2

d)

nitrogen

129.
Mechanical movement to inhale and exhale air
a)
Gas Exchange
b)
Respiration
c)
Breathing
d)
Transport
130.
The movement by diffusion of oxygen and carbon dioxide across a membrane
a)
Ventilation
b)
Breathing
c)
Gas exchange
d)
Respiration
131.

What is the main function of the respiratory system?

a)

to provide oxygen and remove carbon dioxide from the body

b)

to bring oxygen to the body

c)

to break down food and absorb nutrients

d)

to remove oxygen from the body and deliver carbon dioxide

132.
The trachea leads to the...
a)
Bronchioles
b)
Bronchi
c)
Esophagus
d)
Pulmonary Vessel
133.

The air sacs that are covered with capillaries where gas exchange takes place.

a)

Bronchi

b)

Trachea

c)

Oxygen

d)

Alveoli

Similar Resources on Wayground

2nd semester biology exam

136 questions

2nd semester biology exam

quiz

Worksheet

•

KG - 12th Grade

Malow Heredity 2

134 questions

Malow Heredity 2

quiz

Worksheet

•

7th - 12th Grade