EASY
Earn 100

Describe the function of bronchioles.in human respiration.

Important Questions on Respiration and Circulation

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Science>Biology>Respiration and Circulation>Human Respiratory System
Give reason for the following:
The lung alveoli are covered with blood capillaries.
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Science>Biology>Respiration and Circulation>Human Respiratory System
Rings of cartilage are present in
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Science>Biology>Respiration and Circulation>Human Respiratory System
_____ respire through lungs.
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Science>Biology>Respiration and Circulation>Human Respiratory System
Draw a neat diagram of the respiratory organ in humans and label the bronchus and alveolus.
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Science>Biology>Respiration and Circulation>Human Respiratory System

Answer the following:

How are alveoli designed to maximise the exchange of gases?

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Science>Biology>Respiration and Circulation>Human Respiratory System
Explain various parts of upper respiratory system.
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Science>Biology>Respiration and Circulation>Human Respiratory System
Tracheal ring in human consist of following
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Science>Biology>Respiration and Circulation>Human Respiratory System
Give reason for the following:
The wall of the trachea is supported by cartilage rings.
HARD
Science>Biology>Respiration and Circulation>Human Respiratory System
Draw a diagram of human respiratory system and label- pharynx, trachea, lungs, diaphragm and alveolar sac on it.
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Science>Biology>Respiration and Circulation>Human Respiratory System
State the function of alveoli in the lungs.
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Science>Biology>Respiration and Circulation>Human Respiratory System
How are respiratory gases transported in human beings?
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Science>Biology>Respiration and Circulation>Human Respiratory System
What is the function of the epiglottis in a man? Draw a labelled diagram showing the human respiratory system.
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Science>Biology>Respiration and Circulation>Human Respiratory System
What is the role of cartilaginous rings in trachea ?
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Science>Biology>Respiration and Circulation>Human Respiratory System

Study the given diagram showing the section through an alveolus and capillary.

Which of the following best describes the concentration of oxygen at X, Y and Z.

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Science>Biology>Respiration and Circulation>Human Respiratory System
Explain the process by which inhalation occurs during breathing in human beings.
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Science>Biology>Respiration and Circulation>Human Respiratory System
How are the alveoli designed to maximize the exchange of gases?
MEDIUM
Science>Biology>Respiration and Circulation>Human Respiratory System
Draw a diagram showing human respiratory system. Label its following parts: (i) Larynx (ii) Trachea (iii) Primary Bronchus (iv) Lungs.
Why do the walls of the trachea not collapse when there is less air in it?
HARD
Science>Biology>Respiration and Circulation>Human Respiratory System
With the help of a flow chart, show how the exchange of gases takes place in the lungs.
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Science>Biology>Respiration and Circulation>Human Respiratory System
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
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Science>Biology>Respiration and Circulation>Human Respiratory System
Name two things of the nasal passage which check the entry of dust into the lungs.