Respiratory System MCQs with Answers

Past Paper MCQ

What is a common trigger for asthma?

• A.Kidney stone
• B.High blood pressure
• C.Bone fracture
• D.Allergy

During the breathing process diaphragm plays a key role, where does diaphragm move during inhalation?

• A.Moves sideways
• B.Move upwards
• C.Remains stationary
• D.Move downwards

Which is a hollow tube in your chest?

• A.Esophagus
• B.Larynx
• C.Bronchus
• D.Trachea

The normal rate of breathing per minute in an adult is _?

• A.10 to 15 times
• B.15 to 20 times
• C.20 to 25 times
• D.25 to 30 times

What is an ideal fresh air amount needed by a man?

• A.50 cubic feet per every 20 minutes
• B.200 cubic feet per every 20 minutes
• C.100 cubic feet per every 20 minutes
• D.150 cubic feet per every 20 minutes

Which gas is used to extract energy from food in respiration?

• A.Nitrogen
• B.Oxygen
• C.Carbon dioxide
• D.Hydrogen

In the process of respiration, the food is _?

• A.Broken down to release energy
• B.Stored as fat for later use
• C.Converted into proteins directly
• D.Absorbed unchanged into the blood

How does anaerobic respiration in muscle cells cause a reduction in blood pH?

• A.Lactic acid diffuses into the blood
• B.Carbon dioxide accumulates in the blood
• C.Oxygen is rapidly depleted from the blood
• D.Glucose breaks down into alcohol in the blood

Recognize the factor which does not affect the process of respiration?

• A.Temperature
• B.Oxygen concentration
• C.CO2
• D.Water availability

Physical exercise done in presence of oxygen is called _?

• A.Isometric exercise
• B.Anaerobic exercise
• C.Aerobic exercise
• D.Isotonic exercise