STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
MORPHOLOGY OF FLOWERING PLANTS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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All of the below
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Nepenthes
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Trapa
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Clematis
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Detailed explanation-1: -Swollen or spongy petiole: The petiole becomes swollen and spongy due to the development of aerenchyma in them. These types of petioles encloses air and helps the plant to float. Example – Trapa bispinosa and Eichhornia.
Detailed explanation-2: -In Eichhornia, swollen and spongy petiole provides air chambers and helps in buoyancy and mechanical support to plants.
Detailed explanation-3: -Solution : The swollen and soft petiole is called spongy petiole. It stores air and helps the plant in floating on the surface of water e.g. Eichhornia.
Detailed explanation-4: -In the water hyacinth (Eichhornia crassipes), swollen petioles keep the plant afloat.
Detailed explanation-5: -There are air-filled cavities or air chambers in the petiole of Eichhornica plants to offer buoyancy for floating on water. That is why Eichhornica’s petiole is spongy.