Question

Distinguish between external respiration and internal respiration

Answer 1

external respiration is called breathing and physical process whereas internal respiration is a chemical reaction

Answer 2

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→External Respiration:

• It includes Respiration occuring in lungs.

• In this process CO2 from lung capillaries diffuse into the lungs.

• In this process O2 from lungs enters in the lung capillaries.

• The exchange of gases takes place between the blood and surrounding medium.

→Internal Respiration:

• It includes Respiration occuring in Tissues.

• In this process, CO2 from tissue enters into the blood.

• In this process, O2 from blood enters in the tissue cells.

• The exchange of gases takes place between the blood and tissues of the body.