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Question

Thick roots arising in Ficus to support heavy branches are called

A
Stilt roots
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B
Prop roots
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C
Assimilatory roots
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D
Floating roots
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Solution

The correct option is B Prop roots

The root is an underground part of the plant that absorbs water and minerals from the soil and anchors the plant firmly.

In some plants, the roots change their shape and get modified to absorb and transport water and minerals from the soil to different parts of the plant.

Prop roots are roots that develop from the branches of the tree, hang downwards, and penetrate into the ground thereby supporting the tree. Roots of the banyan tree and Rubber plant have prop roots. Prop roots of the banyan tree are meant for providing support to a big tree. They act as pillar-like roots, which give extra mechanical consent to heavy stem branches. When the adventitious roots modified for aerial support is called as prop roots.

Stilt roots are adventitious roots that grow from lower stem nodes and join and become deeper in the soil. They are found in sugarcane and maize because to provided mechanical support to the weak stems. Stilt roots grow obliquely downward from the main stem's basal nodes and fix firmly to the soil. Maize, Red Mangrove, and Sugarcane are examples of plants having stilt roots.

Modified adventitious roots that become green colour and perform photosynthesis are called as assimilatory roots, e.g., Taeniophyllum, Trapa, Tinospora cordifolia.

Floating roots are the modifications of adventitious roots. ... They are spongy roots filled with air which helps in proving buoyancy to the plant for floating. These roots make the plant inflated so that it can float on the surface of the water as well as can creep over the surface of wetlands.

So, the correct answer is "option B".

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