What is the role played by the hypocotyl in epigeal germination?

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Solution

Germination of a seed which takes place above the ground is called epigeal germination. In epigeal germination, the hypocotyl grows to form a loop above the soil. It then straightens pushing the cotyledons above the ground.

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Q. Statement 1: In epigeal germination, cotyledons are pushed above the ground.
Statement 2: Hypocotyl elongates in epigeal germination. Choose the correct statement.

Q. Assertion: Gram, pea and mango show epigeal germination.
Reason: In epigeal germination, after radicle hypocotyl grows faster.

Q. State True or False for the following statements regarding the difference between epigeal and hypogeal germination.
1) In Epigeal germination cotyledons are pushed above the ground.
2) In Hypogeal germination cotyledons remain in the ground.
3) Epicotyl elongates faster than hypocotyl, hence cotyledons pulled above.
4) Hypocotyl elongates faster than epicotyl, hence cotyledons remain below.

How do you distinguish between hypogeal germination and epigeal germination? What is the role of cotyledon(s) and the endosperm in the germination of seeds?

Q. What happens to the cotyledons in epigeal germination?

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Epigeal Germination

Standard IX Biology

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