Question

Water hyacinth float on the water

Answer 1

Answer:

water hyacinth floats in water due to presence of large air cavities in the parenchyma tissue. these specialized parenchyma tissue are called parenchyma.

Explanation:

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Answer 2

Answer:

Parenchyma cells are thin walled, flexible and loosely packed cells. They are often alive at maturity. Their shape changes as per function. They are filler tissue in soft parts of plant. 

Sclerenchyma cells are a type of permanent tissue. They are dead, long, thin narrow cells with thickened walls without any internal space. This tissue makes plant hard and stiff. 

Collenchyma cells are living, elongated and irregularly thickened at corners with less intercellular space. It allows easy bending of plant parts without breaking.

In many aquatic plants, parenchyma cells have large air cavities to give buoyancy to the plant and enable them to float in water. Such, parenchyma cells are called as aerenchyma. Water hyacinth possess such cells, which make them enable to float in water. 

Explanation:

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