Human Gas Exchange

What is the definition of inspired air?

• Air that we breathe in

• Air that we breathe out

• Air inside our lungs

What is the definition of expired air?

• Air that we breathe in

• Air that we breathe out

• Air inside our lungs

Which of the following have a larger amount in inspired air?

• carbon dioxide

• oxygen

• nitrogen

• water vapour

What is the differences between inspired air and expired air?

• the amount of nitrogen in inspired air is higher than expired air

• the amount of oxygen in expired air is higher than inspired air

• temperature of inspired air is always higher than expired air

• the amount of carbon dioxide in expired air is higher than inspired air

The diagram shows human respiratory system. Which one is larynx?

The diagram shows human respiratory system. Which one is trachea?

The diagram shows human respiratory system. Which one is bronchi?

The diagram shows human respiratory system. Which one is alveoli?

What is the name of blood vessel that surrounds the alveoli called?

• bronchiole

• capillaries

• red blood cell

• alveolus wall

Which of the following takes place after blood pass through alveoli?

• Carbon dioxide in the blood moves into the alveolus

• Oxygen in the red blood cell moves into the alveolus

• Oxygenated blood becomes deoxygenated blood