MEDIUM
Earn 100
What are bronchioles?
Important Questions on Life Process: Nutrition, Transportation, Respiration, Excretion
EASY
Give reason for the following:
The lung alveoli are covered with blood capillaries.
EASY
Rings of cartilage are present in
MEDIUM
_____ respire through lungs.
EASY
Draw a neat diagram of the respiratory organ in humans and label the bronchus and alveolus.
MEDIUM
Answer the following:
How are alveoli designed to maximise the exchange of gases?
EASY
Explain various parts of upper respiratory system.
MEDIUM
Tracheal ring in human consist of following
EASY
Give reason for the following:
The wall of the trachea is supported by cartilage rings.
HARD
Draw a diagram of human respiratory system and label- pharynx, trachea, lungs, diaphragm and alveolar sac on it.
EASY
State the function of alveoli in the lungs.
MEDIUM
How are respiratory gases transported in human beings?
MEDIUM
What is the function of the epiglottis in a man? Draw a labelled diagram showing the human respiratory system.
MEDIUM
What is the role of cartilaginous rings in trachea ?
HARD
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.
MEDIUM
Explain the process by which inhalation occurs during breathing in human beings.
EASY
How are the alveoli designed to maximize the exchange of gases?
MEDIUM
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
With the help of a flow chart, show how the exchange of gases takes place in the lungs.
MEDIUM
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
MEDIUM
Name two things of the nasal passage which check the entry of dust into the lungs.
