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Science Form 3 Chapter 2 Revision

Total questions: 72

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

NUMBER 1 is

a)

Lungs

b)

Pharynx

c)

Mouth

d)

Alveoli

2.

NUMBER 2 is

a)

Pharynx

b)

Bronchi 

c)

Alveoli

d)

Lungs

3.

NUMBER 6 is

a)

Lungs

b)

Trachea

c)

Mouth

d)

Alveoli

4.

NUMBER 3 is

a)

Pharynx

b)

Trachea

c)

Bronchi

d)

Alveoli

5.

Which are the main organs in the respiratory system?

a)

Heart

b)

Stomach

c)

Lungs

d)

Nose

6.

What is the function of the respiratory system?

a)

Take in oxygen only

b)

Remove carbon dioxide only

c)

Take in oxygen and remove carbon dioxide

d)

Make sugar

7.

What is the tube called that is also known as your wind pipe?

a)

Oesophagus

b)

Bronchi

c)

Trachea

d)

Alveoli

8.
How is carbon dioxide released from the body? 
a)
When we exhale
b)
When we urinate
c)
When we sweat
d)
When we inhale
9.

Which of these organs is not a part of the respiratory system?

a)

Trachea

b)

Lungs

c)

Heart

d)

Pharynx

10.
Which organ system includes the trachea, bronchi, lungs, and alveoli?
a)
Digestive system
b)
Circulatory system
c)
Respiratory system
d)
Endocrine system
11.

The muscles that helps to expand and contract the lungs, forcing air in and out

a)

Pharynx

b)

Nasal cavity

c)

Alveoli

d)

Diaphragm

12.
Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide
a)
Pharynx
b)
Diaphragm
c)
Alveoli
d)
Lungs
13.

Given the following structures:

1. lungs

2. nasal cavity

3. bronchi

4. trachea

5.pharynx

Which of the following is the correct order that air would flow during inhalation.

a)

1,2,5,3,4

b)

2,5,4,3,1

c)

2,1,3,4,5

d)

4,5,2,3,1

14.

Which sequence correctly indicates the branching pattern of the human respiratory system?

a)

trachea -> bronchi -> bronchioles -> alveoli

b)

trachea -> bronchioles -> bronchi -> alveoli

c)

alveoli -> trachea -> bronchioles -> bronchi

d)

alveoli -> bronchioles -> trachea -> bronchi

15.

Which structure shown in the diagram below contracts, causing a pressure change in the chest cavity during breathing?

a)

A

b)

B

c)

C

d)

D

16.

What does the function of Nostrills

a)

Stop dust dust to enter in nose

b)

Release Carbon dioxide from lungs

c)

Transport oxygen to lungs

17.

When we inhale, Our diaphragm

a)

moves up

b)

moves down

c)

flatterns

d)

None

18.

What is labelled ' E ' the Diagram

a)

Pharynx

b)

Bronchoiles

c)

Trachea

d)

Larynx

19.
What is the respiratory system ? 
a)
The respiratory system is the system that helps circulate our blood . 
b)
The respiratory system is the system that takes in oxygen and takes the unneeded particles and creates carbon dioxide. 
c)
The respiratory system is  a system that is similar to the circulatory system. 
d)
The respiratory system is a system that holds the heart as an internal organ. 
20.
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.
d)
inflate your lungs
21.
After the trachea, air travels through the...
a)
Bronchiole
b)
Alveoli
c)
Bronchus
d)
Capillary
22.
Identify the pathway of air.
a)
nasal cavity, throat, bronchioles, bronchi, alveoli
b)
mouth, nasal cavity, bronchi, bronchioles, alveoli
c)
nasal cavity/mouth, trachea, bronchi, bronchus, alveoli
d)
nasal cavity/mouth, trachea, bronchi, bronchioles, alveoli
23.
Gaseous exchange is when...
a)
o2 diffuses from the alveoli to the capillary
b)
co2 diffuses from the alveoli to the capillary
c)
o2 diffuses from the capillary to the alveoli
d)
co2 diffuses from the capillary to the alveoli
24.
Oxygen + haemoglobin = ?
a)
oxygenated haemoglobin
b)
oxyhaemoglobin
c)
haemoglobin
d)
oxygenglobin
25.

Gaseous exchange happens because of...

a)

Osmosis

b)

Respiration

c)

Diffusion

d)

Semi-permeable membranes

26.
Blood arriving in the capillary from the body has a...
a)
Higher concentration of carbon dioxide (CO2) and a lower concentration of oxygen (O2)
b)
Higher concentration of oxygen (O2) and a lower concentration of carbon dioxide (CO2)
27.

Air exhaled has more (a)   than air inhaled.

28.

Which one is not features to ensure an efficient gaseous exchange with the surroundings?

a)

Moist surface of respiratory structures

b)

Thin respiratory structures such as the walls of blood capillaries

c)

Dry outer skin causes the respiratory gases to dissolve and diffuse easily

d)

Large surface area of respiratory structures

29.

When we exercise, our rate of respiration

increases. Higher rate of transport of

.................... to body cells and higher rate of

elimination of ....................... from body

cells result in healthier body cells.

a)

oxygen , carbon monoxide

b)

oxyhaemoglobin , carbon monoxide

c)

carbon dioxide , oxygen

d)

oxygen , carbon dioxide

30.

A dome shaped sheet of muscle, the _________, separates the chest from the abdomen

'n Koepelvormige spiervel, die ________, skei die borskas van die buik

a)

diaphragm/diafragma

b)

epiglottis

c)

alveoli

d)

bronchi/brongi

31.

Name A

a)

Trachea

b)

Lung

c)

Alveolus

d)

Blood capillary

32.

Name B

a)

Trachea

b)

Lung

c)

Alveolus

d)

Blood capillary

33.

Carbon dioxide diffuses in from

a)

A to B

b)

B to A

34.

Oxygen diffuses in from

a)

A to B

b)

B to A

35.

Which of the following is not correct about alveolus?

a)

Thick wall

b)

Thin wall

c)

Moist wall

d)

Large surface area

36.

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

I. Large surface area

II. Thin walls

III. Dry surfaces

a)

I & II ONLY

b)

I ONLY

c)

II AND III

d)

I, II AND III

37.

NUMBER 1 is

a)

Lungs

b)

Pharynx

c)

Mouth

d)

Alveoli

38.

NUMBER 2 is

a)

Pharynx

b)

Bronchi 

c)

Alveoli

d)

Lungs

39.

NUMBER 6 is

a)

Lungs

b)

Trachea

c)

Mouth

d)

Alveoli

40.

NUMBER 3 is

a)

Pharynx

b)

Trachea

c)

Bronchi

d)

Alveoli

41.

Which are the main organs in the respiratory system?

a)

Heart

b)

Stomach

c)

Lungs

d)

Nose

42.

What is the function of the respiratory system?

a)

Take in oxygen only

b)

Remove carbon dioxide only

c)

Take in oxygen and remove carbon dioxide

d)

Make sugar

43.

What is the tube called that is also known as your wind pipe?

a)

Oesophagus

b)

Bronchi

c)

Trachea

d)

Alveoli

44.
How is carbon dioxide released from the body? 
a)
When we exhale
b)
When we urinate
c)
When we sweat
d)
When we inhale
45.

Which of these organs is not a part of the respiratory system?

a)

Trachea

b)

Lungs

c)

Heart

d)

Pharynx

46.
Which organ system includes the trachea, bronchi, lungs, and alveoli?
a)
Digestive system
b)
Circulatory system
c)
Respiratory system
d)
Endocrine system
47.

The muscles that helps to expand and contract the lungs, forcing air in and out

a)

Pharynx

b)

Nasal cavity

c)

Alveoli

d)

Diaphragm

48.
Clusters of tiny air sacs that allow the exchange of oxygen and carbon dioxide
a)
Pharynx
b)
Diaphragm
c)
Alveoli
d)
Lungs
49.

Given the following structures:

1. lungs

2. nasal cavity

3. bronchi

4. trachea

5.pharynx

Which of the following is the correct order that air would flow during inhalation.

a)

1,2,5,3,4

b)

2,5,4,3,1

c)

2,1,3,4,5

d)

4,5,2,3,1

50.

Which sequence correctly indicates the branching pattern of the human respiratory system?

a)

trachea -> bronchi -> bronchioles -> alveoli

b)

trachea -> bronchioles -> bronchi -> alveoli

c)

alveoli -> trachea -> bronchioles -> bronchi

d)

alveoli -> bronchioles -> trachea -> bronchi

51.

Which structure shown in the diagram below contracts, causing a pressure change in the chest cavity during breathing?

a)

A

b)

B

c)

C

d)

D

52.

What does the function of Nostrills

a)

Stop dust dust to enter in nose

b)

Release Carbon dioxide from lungs

c)

Transport oxygen to lungs

53.

When we inhale, Our diaphragm

a)

moves up

b)

moves down

c)

flatterns

d)

None

54.

What is labelled ' E ' the Diagram

a)

Pharynx

b)

Bronchoiles

c)

Trachea

d)

Larynx

55.
What is the respiratory system ? 
a)
The respiratory system is the system that helps circulate our blood . 
b)
The respiratory system is the system that takes in oxygen and takes the unneeded particles and creates carbon dioxide. 
c)
The respiratory system is  a system that is similar to the circulatory system. 
d)
The respiratory system is a system that holds the heart as an internal organ. 
56.
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.
d)
inflate your lungs
57.
After the trachea, air travels through the...
a)
Bronchiole
b)
Alveoli
c)
Bronchus
d)
Capillary
58.
Identify the pathway of air.
a)
nasal cavity, throat, bronchioles, bronchi, alveoli
b)
mouth, nasal cavity, bronchi, bronchioles, alveoli
c)
nasal cavity/mouth, trachea, bronchi, bronchus, alveoli
d)
nasal cavity/mouth, trachea, bronchi, bronchioles, alveoli
59.
Gaseous exchange is when...
a)
o2 diffuses from the alveoli to the capillary
b)
co2 diffuses from the alveoli to the capillary
c)
o2 diffuses from the capillary to the alveoli
d)
co2 diffuses from the capillary to the alveoli
60.
Oxygen + haemoglobin = ?
a)
oxygenated haemoglobin
b)
oxyhaemoglobin
c)
haemoglobin
d)
oxygenglobin
61.

Gaseous exchange happens because of...

a)

Osmosis

b)

Respiration

c)

Diffusion

d)

Semi-permeable membranes

62.
Blood arriving in the capillary from the body has a...
a)
Higher concentration of carbon dioxide (CO2) and a lower concentration of oxygen (O2)
b)
Higher concentration of oxygen (O2) and a lower concentration of carbon dioxide (CO2)
63.

Air exhaled has more (a)   than air inhaled.

64.

Which one is not features to ensure an efficient gaseous exchange with the surroundings?

a)

Moist surface of respiratory structures

b)

Thin respiratory structures such as the walls of blood capillaries

c)

Dry outer skin causes the respiratory gases to dissolve and diffuse easily

d)

Large surface area of respiratory structures

65.

When we exercise, our rate of respiration

increases. Higher rate of transport of

.................... to body cells and higher rate of

elimination of ....................... from body

cells result in healthier body cells.

a)

oxygen , carbon monoxide

b)

oxyhaemoglobin , carbon monoxide

c)

carbon dioxide , oxygen

d)

oxygen , carbon dioxide

66.

A dome shaped sheet of muscle, the _________, separates the chest from the abdomen

'n Koepelvormige spiervel, die ________, skei die borskas van die buik

a)

diaphragm/diafragma

b)

epiglottis

c)

alveoli

d)

bronchi/brongi

67.

Name A

a)

Trachea

b)

Lung

c)

Alveolus

d)

Blood capillary

68.

Name B

a)

Trachea

b)

Lung

c)

Alveolus

d)

Blood capillary

69.

Carbon dioxide diffuses in from

a)

A to B

b)

B to A

70.

Oxygen diffuses in from

a)

A to B

b)

B to A

71.

Which of the following is not correct about alveolus?

a)

Thick wall

b)

Thin wall

c)

Moist wall

d)

Large surface area

72.

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

I. Large surface area

II. Thin walls

III. Dry surfaces

a)

I & II ONLY

b)

I ONLY

c)

II AND III

d)

I, II AND III

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