Gaseous Exchange Test 01

Total Questions: 29

1 - The process of gaseous exchange involves:

A ) Breakdown of C-H bonds to yield energy
B ) Physical movements that take air in and out of body
C ) Getting oxygen from the air and removing carbon dioxide ✅
D ) Transport of oxygen by the blood to different parts of the body

2 - Most of the gaseous exchange in a leaf occurs through:

A ) Stomata ✅
B ) General surface
C ) Cuticle
D ) Lenticels

3 - How many bronchi there in the air passingaway?

A ) One
B ) Two ✅
C ) Many
D ) Three

4 - Where does the gaseous exchange occur in humans?

A ) Pharynx
B ) Trachea
C ) Bronchi
D ) Alveoli ✅

5 - Which structure actively helps in taking the air out of lungs?

A ) Nasal cavity
B ) Bronchus
C ) Bronchiole
D ) Diaphragm ✅

6 - The primary chemical stimulus for breathing is the concentration of;

A ) Carbon dioxide in blood ✅
B ) Oxygen in blood
C ) Carbon dioxide in muscles
D ) Oxygen in muscles

7 - Point out the FALSE statement about respiration.

A ) Gases can easily pass through the walls of the alveoli
B ) Gas exchange in lungs is very efficient because lungs provide large surface area
C ) In in emphysema , the walls alveoli break and there is more surface area ✅
D ) Dust particles can damage the lungs by irritating the inner alveoli surface

8 - A disease involving the breakdown of air sacs of the lungs is;

A ) Pneumonia
B ) Bronchitis
C ) Asthma
D ) Emphysema ✅

9 - Which process does not occur in the nasal cavity?

A ) Trapping of large dust particles
B ) Humidification of the inhaled air
C ) Warming of the inhaled air
D ) Exchange of gases ✅

10 - What type of blood vessels surrounds the alveoli?

A ) Artery
B ) Arteriole
C ) Capillary ✅
D ) Vein

11 - Gaseous exchange occurs through stomata in:

A ) Leaves and young steams ✅
B ) Woody stems and mature roots
C ) Young roots
D ) Aquatic plants

12 - In humans and other higher animals, the exchange of gases is carried out by:

A ) Skin
B ) Diaphragm
C ) Air passageway
D ) Respiratory system ✅

13 - The length of trachea is about:

A ) 10 cm
B ) 12 cm ✅
C ) 22 cm
D ) 20 cm

14 - C-shaped cartilaginous rings are present in the wall of;

A ) Bronchi
B ) Bronchioles
C ) Alveoli
D ) Trachea ✅

15 - Pairs of ribs present in human are:

A ) 24
B ) 12 ✅
C ) 26
D ) 36

17 - Other name of voice box is;

A ) Trachea
B ) Larynx ✅
C ) Bronchi
D ) Alveoli

18 - The normal breathing rate in human being is:

A ) 10–40 times per minute
B ) 16-20 times per minute ✅
C ) 30-40 times per minute
D ) 5–10 times per minute

19 - During exercise or other hard physical works the breathing rate may increase up to:

A ) 30–40 times per minute ✅
B ) 50-60 times per minute
C ) 50-55 times per minute
D ) 60-70 times per minute

20 - Amount of oxygen in expired air is:

A ) 21%
B ) 16% ✅
C ) 0.04%
D ) 4%

21 - Amount of carbon dioxide in inspired air is:

A ) 16%
B ) 0.04% ✅
C ) 4%
D ) 40%

22 - Amount of nitrogen in expired air is:

A ) 70%
B ) 80%
C ) 79% ✅
D ) 40%

24 - In this disease, the patient has usually lost 50% to 70% of his/her lungs;

A ) Kidneys
B ) Digestive system
C ) Lungs ✅
D ) Blood

25 - It is a form of allergy:

A ) Asthma ✅
B ) Bronchitis
C ) Pneumonia
D ) Lung cancer

26 - "World No Tobacco Day" is celebrate on:

A ) 30 June
B ) 31 June
C ) 11 January
D ) 31st of May ✅

27 - Smoking may also lead to the cancer in:

A ) Kidneys and pancreas
B ) Oral cavity and larynx
C ) Breast and bladder
D ) All of the above

28 - The destruction of wall of alveoli is called:

A ) Pneumonia
B ) Emphysema ✅
C ) Asthma
D ) Bronchitis

29 - The inflammation of bronchi or bronchioles is called:

A ) Bronchitis ✅
B ) Emphysema
C ) Pneumonia
D ) Asthma