Respiratory System
Biology ⇒ Human Biology
Respiratory System starts at 6 and continues till grade 12.
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See sample questions for grade 8
A person is breathing rapidly after running. What is the likely reason for this change in breathing rate?
Describe how smoking can affect the respiratory system.
Describe the difference between inhalation and exhalation.
Explain the difference between external and internal respiration.
Explain what happens to the diaphragm during inhalation.
Explain why breathing rate increases during exercise.
Explain why it is important for the trachea to have rings of cartilage.
Name the tiny air sacs in the lungs where gas exchange occurs.
What is the function of the nasal hairs in the respiratory system?
What is the function of the pleura surrounding the lungs?
What is the main function of the alveoli in the lungs?
What is the main waste product removed from the body by the respiratory system?
What is the name of the tube that connects the throat to the lungs?
What is the role of mucus in the respiratory system?
Which gas is removed from the body during exhalation?
Which organ is primarily responsible for the exchange of gases in the human respiratory system?
A person is exposed to high levels of air pollution for several months. Describe two possible effects this could have on their respiratory system and explain why.
A student measures their breathing rate at rest and after running. The breathing rate increases after running. Explain the physiological reason for this change.
Describe the process by which carbon dioxide is transported from the body’s cells to the lungs for exhalation.
Explain how the structure of the alveoli increases the efficiency of gas exchange in the lungs.
