Describe excretion in plants.

Explanation

The waste materials which must be removed are solid, liquid and gaseous substances. Plants excrete these in manner which is different than that found in animals. Plants get rid of gaseus substances through stomata. The common gaseous wastes are oxygen and `CO_(2)`. Oxygen is produced due to photosynthesis and `CO_(2)` is produced due to respiration.
The excess water taken through roots is also removed through stomata. Some of it is also removed through general body surface. The process of removal of water is called transpiration. The solids are deposited in the leaves. The portions of leaves having waste deposited in them lose their green colour and become dead. Finally the dead leaves are shed to get red of the waste.