Question

Aquatic plants float in water. give reason for this fact

Answer 1

In aquatic plants,large air cavities are present in parenchyma to give buoyancy to the plants to help them to float. Such parenchyma type is called are aerenchyma.

Answer 2

Reasons for Aquatic plants floating in water:

• Aquatic plants do float in the water as they possess special adaptations to remain on surface of water or remain submerged in water.
• These plants possess a lot of spongy cells full of air which helps them float on surface of water. These cells are called aerenchyma.
• Some of them are also floating leaves and some of them are dissected.
• Not only leaves, but there are some of them, which possess spongy stems as well.

To learn more about Aquatic plants:

Explain with two example how gases that dissolve in water are useful to aquatic plants and animals

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In what way flexible stem is useful to the aquatic plants

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