Question

Question 4
Breathing is a process that
(i) provides $O_2$ to the body.
(ii) breaks down food to release energy.
(iii) helps the body to get rid of $C{O}_2$.
(iv) produces water in the cells.
Which of the following gives the correct combination of functions of breathing?

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (ii) and (iv)

Answer 1

The answer is (c).
Breathingis the process that moves air in and out of the lungs, or oxygen through other respiratory organs such as gills. For organisms with lungs,breathingis also called ventilation, becausue it includes both inhalation and exhalation. Hence, breathing provides oxygen to the body and helps the body to get rid of the carbon dioxide.