Respiratory System
Biology ⇒ Human Biology
Respiratory System starts at 6 and continues till grade 12.
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See sample questions for grade 12
A patient is breathing rapidly and deeply after strenuous exercise. Explain why this occurs.
Describe the effect of carbon monoxide on oxygen transport in the blood.
Describe the effect of high altitude on the respiratory system.
Describe the role of chemoreceptors in the regulation of breathing.
Describe the role of surfactant in the lungs.
Explain how hyperventilation affects blood pH.
A patient is breathing rapidly and deeply after strenuous exercise. Explain why this occurs.
A person with a tidal volume of 500 mL and a respiratory rate of 12 breaths per minute has a minute ventilation of ________ mL per minute.
Which of the following best describes the role of hemoglobin in the respiratory system?
(1) It digests food in the stomach
(2) It transports oxygen in the blood
(3) It filters air in the nasal cavity
(4) It produces sound in the larynx
Which of the following best describes tidal volume?
(1) The maximum amount of air that can be exhaled after a normal exhalation
(2) The amount of air inhaled or exhaled during normal breathing
(3) The total volume of the lungs
(4) The volume of air remaining after maximal exhalation
Which of the following best explains why the left lung is smaller than the right lung?
(1) To accommodate the liver
(2) To accommodate the heart
(3) To allow more space for the diaphragm
(4) To increase surface area for gas exchange
Which of the following diseases is primarily caused by long-term exposure to cigarette smoke?
(1) Tuberculosis
(2) Emphysema
(3) Influenza
(4) Pneumonia
A person with a tidal volume of 500 mL and a respiratory rate of 12 breaths per minute has a minute ventilation of ________ mL per minute.
The ________ is the voice box located at the top of the trachea.
The exchange of gases between the blood and the body tissues is called ________ respiration.
The main muscle responsible for normal, quiet breathing is the ________.
True or False: Carbon dioxide is more soluble in blood plasma than oxygen.
True or False: During forced expiration, the internal intercostal muscles contract.
True or False: Oxygen binds to the heme group of hemoglobin.
True or False: The diaphragm contracts and moves downward during inspiration.
