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.
A person is breathing rapidly after running. What is the likely reason for this change in breathing rate?
Which of the following best describes the function of the larynx?
(1) Gas exchange
(2) Producing sound
(3) Filtering air
(4) Absorbing nutrients
Which of the following best describes the path of air as it enters the body?
(1) Nose → Trachea → Bronchi → Lungs
(2) Mouth → Esophagus → Lungs
(3) Nose → Lungs → Trachea
(4) Trachea → Nose → Lungs
Which of the following diseases is directly related to the respiratory system?
(1) Diabetes
(2) Asthma
(3) Arthritis
(4) Anemia
Which of the following gases is most abundant in the air we breathe?
(1) Oxygen
(2) Carbon dioxide
(3) Nitrogen
(4) Hydrogen
During exhalation, the diaphragm ________.
The ________ is a muscular structure that helps in breathing by moving up and down.
The exchange of gases between the blood and the body cells is called ________.
The main passageway for air to enter the respiratory system is the ________.
True or False: Oxygen diffuses from the alveoli into the blood because the concentration of oxygen is higher in the alveoli than in the blood.
True or False: Oxygen is transported in the blood mainly by red blood cells.
True or False: The bronchioles are smaller branches of the bronchi that lead to the alveoli.
True or False: The lungs are protected by the rib cage.
