Gas Exchange in Alveoli PreLess

Exhaled air is warmer than atmospheric air

• Exhaled air is colder than atmospheric air
• False
• True
• Exhaled air has the same temperature as atmospheric air

Atmospheric air is more saturated with water vapour than expired air

• False
• True
• Depends on the location
• Partially true

Which gas has the highest amount in the atmospheric air?

• Hydrogen
• Nitrogen
• Carbon Dioxide
• Oxygen

Oxygen level in exhaled air is _______ than the inhaled air

• lower
• the same
• equal
• higher

The amount of nitrogen in inhaled air is _________ in exhaled air

• higher

• doubled

• the same
• lower

The amount of carbon dioxide in inhaled air is _________ in exhaled air

• the same
• higher
• nonexistent
• lower

Which is the correct order of air entering the lungs?

• Nose or mouth, bronchioles, bronchi, trachea, alveoli

• Nose or mouth, bronchioles, trachea, bronchi, alveoli

• Nose or mouth, trachea, bronchi, bronchioles, alveoli

Which of the organs below does the gas exchange happens?

• trachea

• bronchi

• bronchioles

• alveoli

The other name for alveoli is __________

• Lung lobes
• Lung Grapes

• Air sacs
• Pulmonary veins

Why do we breathe?

• To absorb sunlight and produce energy
• To expel excess water from the body
• To take in oxygen and release carbon dioxide
• To communicate with other living organisms