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प्रश्न
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?
उत्तर
| Hypogeal Germination | Epigeal Germination |
| Epicotyl elongation and rapid growth. | Elongation of the hypocotyl and rapid development. |
| Cotyledons are plants that live in the soil. | Cotyledons are plants that grow above the ground. |
| Cotyledons tend to be non-green and non-photosynthetic. | Cotyledons turn green and start photosynthesizing. |
| Examples: Bean, Castor. | Examples: Rice, Maize. |
The Role of Cotyledons and Endosperm: Cotyledons and endosperm serve as a food storage system. During germination, the food in them becomes accessible to the embryo. The seedling starts photosynthesis when the first set of leaves emerges. Endosperm and cotyledons provide food until then.
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संबंधित प्रश्न
Draw the labelled diagram of the following:
Gram seed
Draw the labelled diagram of the following:
V.S. of maize seed
Put a tick mark (✓) against the correct alternative in the following statement
Which one of the following is a monocotyledonous seed?
Name the following
A seed which shows hypogeal germination.
Name the following
Amonocotseed.
Name the following
A seed which shows epigeal germination.
Name the following
A dicot seed.
Imagine all the seeds produced by a plant happen to fall under the same plant and sprout into new plants. Mention any two problems that will be faced by the new plants.
With the help of a suitable labelled diagram, describe the structure of a dicot seed.
The mature seeds of plants such as gram and peas, possess no endosperm, because ______.
