| 1 |
How many lobs are present in right lung? |
2
3
4
5
|
| 2 |
How many pairs of ribs in humans? |
12
24
26
30
|
| 3 |
C-Shaped cartilaginous rings are present in the wall of. |
Bronchi
Bronchioles
Alveoli
Trachea
|
| 4 |
The length of trachea is: |
10 cm
12 cm
22 cm
20 cm
|
| 5 |
What type of blood vessels surrounds the alveoli? |
Artery
Arteriole
Capillary
Vein
|
| 6 |
The primary chemical stimulus for breathing is the concentration of. |
Carbon dioxide in blood.
Oxygen in blood
Carbon oxide in muscles
Oxygen in muscles.
|
| 7 |
Which structure actively helps in taking the air out of lungs? |
Nasal cavity
Bronchus
Bronchiole
Diaphragm
|
| 8 |
Where does the gaseous exchange occur in humans? |
Pharynx
Trachea
Bronchi
Alveoli
|
| 9 |
How many bronchi are there in the air passageway? |
One
Two
Many
None of these
|
| 10 |
Most of the gaseous exchange in a leaf occurs through. |
Stomata
General surface
Cuticle
lenticels
|
| 11 |
The process of gaseous exchange involves. |
Break down of C-H bounds to yield energy.
Physical movements that take air ain and our of body
Getting oxygen from the air and removing carbon dioxide
Transport of oxygen by the blood to different parts of the body.
|
| 12 |
Medicine can help you to feel: |
Best
Better
Stronger
Weak
|
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