Breathing

It is the process of taking in oxygen and bringing out carbon dioxide.

Alternative Definitions

• Breathing is the process that moves air in and out of the lungs

• Breathing is inhaling Oxygen (O₂) and exhaling Carbon Dioxide (CO₂)

The main difference between Respiration and Breathing is Energy. Energy is one of the end-products of respiration.

Respiration is a process and also involves mechanisms.

Breathing is also referred to as external respiration or gaseous exchange.