Explain why respiration is said to be the reverse of photosynthesis.

Respiration is said to be the reverse of photosynthesis due to the following reasons :

1. In respiration, the organic food is disintegrated into its inorganic compounds, namely –
   Carbon dioxide and Water. In photosynthesis, the organic food is manufactured from its inorganic components, namely - Carbon dioxide and Water.
2. In respiration, Carbon dioxide is released whereas in Photosynthesis Carbon dioxide is consumed.
3. Oxygen is consumed during respiration while Oxygen is evolved in photosynthesis
4. Energy is liberated in Respiration while in Photosynthesis, energy is absorbed.