Respiratory System #2

Front

What gas do body cells expel during internal respiration?

Back

CO2 (Carbon Dioxide)

Front

What is the act of taking in air and out of the lungs called?

Back

Breathing or Ventilation

Front

What process uses oxygen to break down sugar in food to produce energy (ATP) in cells?

Back

Cellular Respiration

Front

What stage of respiration involves the exchange of gases between blood and body cells?

Back

Internal Respiration

Front

Where does gas exchange occur in humans?

Back

Alveoli

Front

What is the primary function of the respiratory system?

Back

To facilitate gas exchange (O2 in, CO2 out) between the body and the environment.

Front

What is external respiration?

Back

The process of exchanging gases between the atmosphere and the blood in the lungs.

Front

What are alveoli?

Back

Tiny air sacs in the lungs where gas exchange occurs.

Front

What is the role of hemoglobin in respiration?

Back

Hemoglobin binds to oxygen in the lungs and carries it to body tissues.

Front

What is the difference between breathing and respiration?

Back

Breathing is the physical act of inhaling and exhaling air; respiration includes the biochemical processes of gas exchange.