Answer:
Respiration can be defined as the process by which exchange of gases takes place. Oxygen is inhaled inside the body and carbon dioxide is exhaled by the body into the outer environment.
Step-by-step explanation:
When glucose is broken down and ATP production takes place in the mitochondria of the cells. To make ATP from glucose oxygen is required, and the leftover products are carbon dioxide and water. They are excreted from the body by blood stream and exhalation.