Question

The term respiration is derived from Latin word “respire”. It means:

• A. To Inhale
• B. To Exhale
• C. To Breathe
• D. To Respire

Answer 1

The correct option is C

To Breathe

The correct option is C.

Explanation of the correct option:

1. The process of exchange of atmospheric oxygen with carbon dioxide produced within cells is called breathing or respiration.
2. The term respiration is derived from the Latin word "respire" which means to breathe.
3. The human breathes about 12-15 times per minute.

Explanation of the incorrect options:

Option A:

1. To inhale or inspiration refers to inhaling or drawing atmospheric air in the body.
2. During inspiration, the air enters the lungs, when the diaphragm contracts and ribs, and sternum are raised.

Option B:

1. To exhale refers to exhaling or releasing alveolar air from the body.
2. During expiration, the air is expelled from the lungs, when the diaphragm is relaxed and the ribs, and sternum return to their original shape.

Option D:

1. To respire means inhaling atmospheric air and exhaling out foul air or ${\mathrm{CO}}_2$ produced by cells.

Final Answer: the term respiration is derived from the Latin word “respire”. It means to breathe.