Respiratory System
Biology ⇒ Human Biology
Respiratory System starts at 6 and continues till grade 12.
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See sample questions for grade 9
A student is running a race and starts breathing faster. What is the main reason for this change?
Describe how the respiratory system helps maintain homeostasis in the body.
Describe the difference between inhalation and exhalation.
Describe the effect of high altitude on breathing.
Describe what happens to the rib cage during inhalation.
Explain how oxygen is transported in the blood.
Explain the role of the diaphragm during inhalation.
A student is running a race and starts breathing faster. What is the main reason for this change?
Which of the following best describes external respiration?
(1) Exchange of gases between blood and body cells
(2) Exchange of gases between air in the alveoli and blood
(3) Exchange of gases in the mitochondria
(4) Exchange of gases in the trachea
Which of the following best describes the path of air from the nose to the alveoli?
(1) Nose → Trachea → Larynx → Bronchi → Alveoli
(2) Nose → Larynx → Trachea → Bronchi → Alveoli
(3) Nose → Trachea → Bronchi → Larynx → Alveoli
(4) Nose → Bronchi → Trachea → Larynx → Alveoli
Which of the following best explains why the alveoli are surrounded by capillaries?
(1) To keep the lungs warm
(2) To allow gas exchange between air and blood
(3) To filter dust from the air
(4) To produce mucus
Which of the following is a disease that affects the respiratory system?
(1) Asthma
(2) Diabetes
(3) Arthritis
(4) Anemia
Fill in the blank: The exchange of gases between the air in the alveoli and the blood is called __________ respiration.
Fill in the blank: The exchange of gases between the blood and body cells is called __________ respiration.
Fill in the blank: The process of releasing air from the lungs is called __________.
Fill in the blank: The respiratory system works closely with the __________ system to deliver oxygen to the body.
True or False: Gas exchange in the lungs occurs by the process of diffusion.
True or False: Smoking can damage the cilia in the respiratory tract.
True or False: The left lung is larger than the right lung.
True or False: The pharynx is a shared passageway for both air and food.
