Respiratory System
Biology ⇒ Human Biology
Respiratory System starts at 6 and continues till grade 12.
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See sample questions for grade 11
A patient is breathing rapidly and deeply after intense exercise. What is the physiological term for this increased rate and depth of breathing?
Describe how the respiratory system works with the circulatory system to maintain homeostasis.
Describe the effect of emphysema on the structure and function of the alveoli.
Describe the effect of high altitude on oxygen uptake in the human body.
A patient is breathing rapidly and deeply after intense exercise. What is the physiological term for this increased rate and depth of breathing?
A person has a tidal volume of 500 mL and a respiratory rate of 12 breaths per minute. What is their minute ventilation?
A patient with chronic obstructive pulmonary disease (COPD) has a reduced ability to exhale air. Explain how this affects the levels of carbon dioxide in their blood and the potential consequences.
A person is exposed to carbon monoxide (CO) in a poorly ventilated room. Explain why CO poisoning can be fatal, even if oxygen is present in the air.
Which gas is transported from the lungs to the tissues by hemoglobin?
(1) Carbon dioxide
(2) Oxygen
(3) Nitrogen
(4) Water vapor
Which of the following best describes the function of cilia in the respiratory tract?
(1) Produce mucus
(2) Trap dust particles
(3) Move mucus and trapped particles out of the airways
(4) Exchange gases
Which of the following best describes the function of surfactant in the lungs?
(1) Increases surface tension
(2) Decreases surface tension
(3) Increases blood flow
(4) Decreases oxygen diffusion
Which of the following best describes the function of the nasal cavity in respiration?
(1) Gas exchange
(2) Filtering, warming, and humidifying air
(3) Producing sound
(4) Exchanging nutrients
Fill in the blank: The ________ are tiny air sacs in the lungs where gas exchange occurs.
Fill in the blank: The ________ is a flap of tissue that covers the glottis during swallowing.
Fill in the blank: The ________ is commonly known as the voice box.
Fill in the blank: The ________ is the main passageway for air into the lungs.
True or False: During exhalation, the pressure inside the lungs is greater than the atmospheric pressure.
True or False: Oxygen binds to the heme group in hemoglobin.
True or False: The medulla oblongata is involved in the control of breathing.
True or False: The partial pressure of oxygen is higher in the alveoli than in the pulmonary capillaries.
