What is the significance of respiration for plants and animals?

The respiration of plants and animals is different. For plants, the term “gas exchange” is more appropriate. The plant absorbs carbon dioxide during the light phase of photosynthesis. Oxygen is released into the atmosphere during chemical reactions. It is a by-product of the reaction. During the dark phase, the opposite is true. Animals, on the other hand, can only absorb oxygen. It is needed by living organisms to ensure the third stage of energy metabolism. It can be used to create various structures in cells and so on.