Respiratory System
Biology ⇒ Human Biology
Respiratory System starts at 6 and continues till grade 12.
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See sample questions for grade 7
A student is running and starts breathing faster. Why does this happen?
Describe one way the respiratory system protects itself from harmful particles in the air.
Describe the path that air takes from the nose to the alveoli.
Describe the role of the nasal cavity in respiration.
Describe what happens to the chest cavity during exhalation.
Explain how the respiratory system helps maintain the balance of oxygen and carbon dioxide in the body.
Explain why breathing through the nose is generally healthier than breathing through the mouth.
A student is running and starts breathing faster. Why does this happen?
Which gas do humans exhale in greater amounts than they inhale? (1) Oxygen (2) Nitrogen (3) Carbon dioxide (4) Hydrogen
Which of the following best describes the function of mucus in the respiratory system? (1) It digests food (2) It traps dust and microbes (3) It carries oxygen (4) It produces sound
Which of the following best describes the process of exhalation? (1) Air enters the lungs (2) Air leaves the lungs (3) Blood absorbs oxygen (4) Blood releases carbon dioxide
Which of the following best explains why we cough? (1) To increase oxygen intake (2) To remove irritants from the respiratory tract (3) To help digestion (4) To cool the body
Fill in the blank: The exchange of gases between the blood and the air in the lungs is called __________ respiration.
Fill in the blank: The main passageway for air to enter the lungs is the __________.
Fill in the blank: The muscle that helps in breathing by moving up and down is called the __________.
Fill in the blank: The process of releasing air from the lungs is called __________.
True or False: Oxygen is transported in the blood mainly by red blood cells.
True or False: Smoking can damage the cilia in the respiratory tract.
True or False: The bronchi branch into smaller tubes called bronchioles.
True or False: The left lung is larger than the right lung.
