Question

Breathing is a process that:
(i) Provides oxygen to the body.
(ii) Breaks down food to release energy.
(iii) Helps the body to get rid of carbon dioxide.
(iv) Produces water in the cells.
Which of the following correctly defines the characteristics of breathing?

• A. (i) and (ii)
• B. (ii) and (iii)
• C. (i) and (iii)
• D. (ii) and (iv)

Answer 1

The correct option is C

(i) and (iii)

Breathing is the process of moving air into and out of the lungs to facilitate gas exchange in the body, mostly by bringing in oxygen and flushing out carbon dioxide. Therefore, statement (i) and (iii) defines the functions of breathing.