Question

Select the group of plants that posses stilt roots are
(a) Zea mays,Rhizophora mangal
(b) Pandanus odoratissimus,Ficus benghalensis
(c) Rhizophora mangal,Hedera helix
(d) Ficus benghalensis,pisum sativum

Answer 1

Hint: The organ of the plant that lies under the surface of soil are roots.Roots can be aerial that is growing up above ground or water. The root is the part of the plant which has neither leaves nor branches. Radicle is the first root that comes from the plant.The roots absorb water and nutrients. Roots helps in storage of food and gives support to the plant.

Complete step by step answer:
The roots which helps in the balance of the plant and are adventitious are stilt roots.They are also called as support roots.They develop from the basal nodes of the main stem and grow obliquely.The main difference between the prop roots and stilt roots is its origin place.In prop roots the main trunk branches develop them and they grow vertically downwards.Whereas in the stilt roots they develop from the main stem and grow obliquely downwards.Plants near seas shows this feature.They are found in small plants.

The correct answer is option(a) Zea mays,Rhizophora mangal.

Note:
Roots which are grown from any part of the plant other than radicle or branches are called adventitious roots.This can be aerial or underground.They usually develop from stem nodes,intermodals,leaves etc.The stilt roots are short but thick.They develop into fibrous roots when penetrated into the soil to provide support to the long unbranched stems.Additionally they allow better absorption of water and minerals.