Respiratory System - Real World Applications
Q. How does smoking affect the respiratory system?
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A.
Improves lung capacity
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B.
Increases mucus production
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C.
Enhances oxygen absorption
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D.
Reduces risk of infections
Solution
Smoking increases mucus production in the respiratory system, leading to blockages and respiratory issues.
Correct Answer: B — Increases mucus production
Q. What is the function of the epiglottis during swallowing?
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A.
To filter air
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B.
To prevent food from entering the trachea
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C.
To produce sound
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D.
To aid in gas exchange
Solution
The epiglottis prevents food and liquids from entering the trachea during swallowing, directing them to the esophagus.
Correct Answer: B — To prevent food from entering the trachea
Q. Which gas is primarily monitored by the body to regulate breathing rate?
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A.
Oxygen
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B.
Carbon dioxide
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C.
Nitrogen
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D.
Hydrogen
Solution
The body primarily monitors carbon dioxide levels to regulate breathing rate, as high levels indicate the need for increased respiration.
Correct Answer: B — Carbon dioxide
Q. Which of the following is a common symptom of respiratory infections?
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A.
Increased appetite
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B.
Shortness of breath
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C.
Improved lung function
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D.
Enhanced energy levels
Solution
Shortness of breath is a common symptom of respiratory infections, as they can obstruct airflow and reduce oxygen intake.
Correct Answer: B — Shortness of breath
Q. Which part of the respiratory system is responsible for the actual exchange of gases?
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A.
Bronchi
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B.
Alveoli
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C.
Trachea
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D.
Larynx
Solution
The alveoli are tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide occurs.
Correct Answer: B — Alveoli
Q. Which respiratory condition is characterized by chronic inflammation of the airways?
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A.
Asthma
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B.
Pneumonia
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C.
Bronchitis
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D.
Emphysema
Solution
Asthma is characterized by chronic inflammation of the airways, leading to difficulty in breathing.
Correct Answer: A — Asthma
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