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 functions of breathing?

OPTIONS

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

Answer 1

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C. (I) and (iii) ✔️

We breathe to get oxygen to our cells so that they can use oxygen to make cellular energy (ATP). 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.

Answer 2

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Breathing is a process that as follows:

• (i) Provides oxygen to the body.
• (iii) Helps the body to get rid of carbon dioxide.