Question

why internal transportation is necessary for plants

Answer 1

Answer:

To circulate water, essential nutrients, excretory products, and gases within the plants for various purposes, transportation in plants is necessary. In vascular tissues, this transportation in the plant takes place. By a suction force, water and minerals are transported to various parts of the plant.

Answer 2

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☆Necessary of Transportation:

$\leadsto$Plants need vascular bundles for transport the food ,minerals and water.

$\leadsto$When water and minerals are absorbed by the roots ,then this cannot be direct reach to the upper parts of plants.

$\leadsto$So xylem tissue takes them and transport it to the upper part of plant like shoot ,stem and mainly for leaves for preparing food by photosynthesis.

$\leadsto$ If roots do work of absorption of water and minerals then it also needs energy .

$\leadsto$For example if we do any work then we need energy to do that work .

$\leadsto$It is same with the roots .

$\leadsto$They need their food for energy. When leaves do photosynthesis and form food, then this cannot directly get by the roots .

$\leadsto$So phloem is used for transporting the food from leaves to roots.

$\leadsto$Hence plants need transporting system. But bryophtes do not need this system because they are thallophytes.

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