Which of the following represents the correct matching set. Type of root Example a) Taproot root i) Banyan tree b) Adventitious root ii) Carrot c) Prop root iii) Sugarcane d) Stilt root iv) Sweet potato?

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AhmedNazir · Answer 1 · Sep 04, 2022 04:29:57

Option 2 : (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii)

The correct answer is (a) - (ii), (b) - (iv), (c) - (i), (d) - (iii).

Explanation:

In plants, the root is the non-green (due to the absence of chlorophyll), cylindrical and descending part that normally grows downwards into the soil.
It does not bear leaves, buds and is not distinguished into nodes and internodes.

Types of root:

Taproot:

The taproot develops from the radicle of embryo of a seed.
The first root formed by the elongation of radicle is called primary root. It continuously grows and produces lateral roots called secondary roots.
These types of roots are present in dicots, e.g., carrot, pea, gram, groundnut, etc.

Adventitious root:

The roots developing from any part of the plant other than the radicle are known as adventitious roots.
These are usually found in monocots, e.g., Sweet potato, wheat, onion, etc.

Prop root:

The prop roots grow as the horizontal branches of the stem and grow vertically downward.
They become thick pillar-like and provide mechanical support to the giant trees e.g., banyan tree

Stilt root:

These are small, thick supporting roots growing obliquely from the basal nodes of the main stem.
They provide mechanical support, e.g., sugarcane, maize, etc.

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