Question:
Parachute mechanism of seed dispersal is seen in:
Parachute mechanism of seed dispersal is seen in:
Updated On: Aug 1, 2022
- Poppy
- Calotoropis
- Plumbago
- Lotus
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The Correct Option is B
Solution and Explanation
Parachute mechanism of seed dispersal is seen in Calotropis. The seeds of Calotropis bear tuft of hairs of coma on one side of the seed. It helps in the dispersal of it by air. The seed can remain in the air for a long time like a parachute.
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Concepts Used:
Seed
The matured and fertilized ovule, which comprises an active embryo reserve food and protective coating, is referred to as a seed. Seeds are ripened ovules that contain an embryonic plant with sufficient reserve food for embryo development. Ovules evolve into seeds after fertilization.
Types of Seed:
- Monocotyledonous seeds: Seeds having only one cotyledon, called monocotyledonous seeds.
- Dicotyledonous seeds: Seeds with two cotyledons, called dicotyledonous seeds.
- Albuminous seeds: Seeds having an endosperm. These seeds have thin membrane cotyledons and endosperm that hold on and feed the seedling during its early growth.
- Exalbuminous seeds: Food gathers in the endosperm tissue of exalbuminous seeds early in development, but it is utilized by the growing embryo and mature seeds without endosperm.