EXCRETION IN PLANTS
- Plants have no special organs for removal of wastes.
- The waste products of respiration and photosynthesis are used as raw materials for each other.
- Oxygen gas produced as a by-product of photosynthesis is used up during respiration and carbon dioxide produced during respiration is used up during photosynthesis.
Excretion is carried out in the plants in the following ways:
- The gaseous wastes, oxygen, carbon dioxide and water vapor are removed through the stomata of leaves and lenticels of stems.
- Some waste products collect in the leaves and bark of trees.
- When the leaves and bark are shed, the wastes are eliminated