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प्रश्न
Differentiate between the following:
Seed coat and Embryo
उत्तर
Seed coat
- It is the protective covering of the seed.
- It develops from the protective layer around the ovules.
- The seed coat determines the shape of the seed.
- Water diffuses through the seed coat into the embryo causing swelling of seed and rupturing of seed coat during germination.
Embryo
- It is the young plant enclosed within the seed coat which germinates to form a new plant.
- It is a product of fertilisation inside the ovary
- Embryo just fills in the shape determined by a seed coat.
- It consists of a radicle, plumule, and cotyledons which give rise to the root and shoot system of the plant.
APPEARS IN
संबंधित प्रश्न
Put a tick mark (✓) against the correct alternative in the following statement
If the cotyledons are pushed above the soil, then such type of germination is called
Radicle emerges out of the seed earlier than plumule. What one advantage is served by this?
State one function of the following
micropyle
In the spaces provided below, draw labelled diagrams to show the three stages in the germination of any seed you have observed.
Give the functions of the following:
Seed coat
Give the functions of the following:
Cotyledons
Name the following:
The part of the seed which gives out the shoot.
Give two examples of the following:
Dicotyledonous non-endospermic seeds showing hypogeal germination.
Differentiate between:
Albuminous seed and Exalbuminous seed.
Describe the structure of seed by a suitable diagram.
