10th Class Biology Solved MCQS
The respiratory disease that is the destruction of the walls of Alveoli is;
Bronchitis
Asthma
Pneumonia
Emphysema
Gaseous Exchange in cow takes in:
Bronchi
Alveoli
Tranchea
Pharynx
Percentage of CO2 in exhaled are during breathing is:
79%
4%
0.04%
16%
The rate of breathing at rest in human is:
70-80times per minute
10 -20 times per minute
80-100times per minute
16-20 times per minute
It is also called sound box:
pharynx
bronchus
trachea
larynx
In normal condition human respiration rate is:
16 to 20 per minute
15 to 12 per minute
12 to 15 per minute
10 to 12 per minute
Point out the FALSE statement about respiration.
Gas exchange in lungs is very efficient because lungs provide large surface area
Dust particles can damage the lung by irritating the inner alveoli surface.
In emphysema, the walls of alveoli break and there is more surface area.
Gases can easily pass through the walls of the alveoli
Which structure actively helps in taking the air out of lungs?
Nasal cavity
Bronchiole
Diaphragm
Bronchus
Which diisease is caused by Streptococcus pneumoniae:
Asthema
Bronchites
Pneumonia
Emphysema
Stomata are present in:
Epidermis
Xylem
Phloem
Endodermis
The process of gaseous exchange involves.
Physical movements that take air ain and our of body
Transport of oxygen by the blood to different parts of the body.
Getting oxygen from the air and removing carbon dioxide
Break down of C-H bounds to yield energy.
The primary chemical stimulus for breathing is the concentration of.
Carbon dioxide in blood.
Carbon oxide in muscles
Oxygen in muscles.
Oxygen in blood
How many lobs are present in right lung?
4
3
5
2
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