Question

Define respiration.

Answer 1

Respiration - The process by which organisms get energy by the conversion of glucose in the presence of oxygen into carbon dioxide and water vapour.

$\mathrm{Glucose}\left(\mathrm{s}\right)+\mathrm{Oxygen}\left(\mathrm{g}\right)\to \mathrm{Carbon}\mathrm{dioxide}\left(\mathrm{g}\right)+\mathrm{Water}\mathrm{vapour}\left(\mathrm{g}\right)+\mathrm{Energy}$

Important points about respiration -

1. It is the reverse process of photosynthesis.
2. The process is carried out by organisms all the time.
3. The process takes place at the cellular level.