Question

Arrange the following steps in respiration by keeping the first step at the top.

• A. $\mathrm{Inhalation}\mathrm{of}\mathrm{air}$
• B. $\mathrm{Transportation}\mathrm{of}\mathrm{oxygen}$
• C. $\mathrm{Generation}\mathrm{of}\mathrm{energy}$
• D. $\mathrm{Exhalation}\mathrm{of}\mathrm{air}$

Answer 1

Respiration is the process of breaking down of food to release energy. Respiration starts with the intake of oxygen followed by the transportation of oxygen to cells. Then, the energy is generated by the cells using oxygen. The last step is exhalation or removal of carbon dioxide from the body.