Main functions of the root system: The main functions of the root system are absorption of water and min- erals from the soil, providing a proper anchorage to the plant parts, storing reserve food material and synthesis of plant growth regulators.
Difference between simple and compound leaves: A leaf is said to be simple, when its lamina is entire or when incised, the incisions do not touch the midrib. When the incisions of the lamina reach up to the midrib breaking it into a number of leaflets, the leaf is called compound. A bud is present in the axil of petiole in both simple and compound leaves, but not in the axil of leaflets of the compound leaf.