Question

Short Answer Questions : 1. Answer the following briefly : (i) Why do our body cells need oxygen?​

Answer 1

Answer:

Body cells use oxygen to transfer energy stored in food to a usable form. This process, which is called cellular respiration, allows the cells to harness energy to perform vital functions such as powering muscles (including involuntary muscles such as the heart) and the movement of materials into and out of cells.

Explanation:

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Answer 2

Explanation:

Every cell in your body needs oxygen to function. ... Your body cells use the oxygen you breathe to get energy from the food you eat. This process is called cellular respiration. During cellular respiration the cell uses oxygen to break down sugar.