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Describe the structure of anatropus ovule with the help of labelled diagram

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Structure of anatropous ovule:

1. Anatropous ovule is the most common type of ovule in angiosperms. It consists of the following parts:
2. Funiculus/Stalk/Funicle: Each ovule develops inside the ovary. Ovule is attached to the placenta by a small stalk called funiculus.
3. Hilum: The point of attachment of the funiculus to the main body of the ovule is known as the hilum.
4. Nucellus: The ovule consists of central parenchymatous tissue called nucellus.
5. Integuments: Nucellus is usually surrounded by two protective coverings called integuments viz. outer and inner integument.
6. Micropyle: A narrow opening at the apex of the ovule is called the micropyle. Its anatropous ovule, micropyle is directed downwards and is present adjacent to the funiculus (funicle).
7. Chalaza: Chalaza is the base of the ovule directly opposite to micropyle.
8. Embryo sac: The embryo sac (female gametophyte) is an oval multicellular structure embedded in the nucellus.

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