Breathing System Quiz
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What is the purpose of the breathing system?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To supply oxygen for respiration and remove waste products
What is the function of the ribs and intercostal muscles?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To cause air to move into or out of the lungs
What is the percentage of carbon dioxide in exhaled air?
A. 78%
B. 14%
C. 5%
D. Variable
What is the main gas exchanged in the alveoli?
A. Nitrogen
B. Oxygen
C. Carbon dioxide
D. Water vapour
What is the function of the trachea?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To exchange gases in the alveoli
What is the purpose of inhaling through the nose?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To exchange gases in the alveoli
What is the function of the bronchioles?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To exchange gases in the alveoli
What happens to our chests when we breathe?
A. They get bigger when we inhale and smaller when we exhale
B. They get smaller when we inhale and bigger when we exhale
C. They stay the same size when we inhale and exhale
D. They move up and down when we inhale and exhale
What is the function of the alveoli?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To exchange gases with the blood
What is the percentage of nitrogen in inhaled air?
A. 78%
B. 21%
C. 0.04%
D. Variable
What is the percentage of oxygen in exhaled air?
A. 78%
B. 14%
C. 5%
D. Variable
What is the process by which oxygen passes from the alveoli into the blood vessels?
A. Diffusion
B. Respiration
C. Excretion
D. Gas exchange
What is the function of the diaphragm?
A. To carry air to and from the lungs
B. To warm and moisten the air
C. To trap dirt particles and bacteria
D. To cause air to move into or out of the lungs
What is the percentage of water vapour in exhaled air?
A. 78%
B. 14%
C. 5%
D. Variable