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CBSE Class 12: Sexual Reproduction in Flowering Plants - Structure of a Flower

In this video we will learn about the structure of a flower and how the flower formation takes place.

Jun 10, 2015 13:15 IST
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In this video we will learn about the structure of a flower and how the flower formation takes place.

• Flower is the site of sexual reproduction in plants.
• A flower develops from the shoot apical meristem.
• Sequences of flower development:

• A flower has 4 whorls

1. Petals- Generally coloured part of a flower and collectively called as corolla.
2. Sepals- Green part just below the petals and collectively called as calyx.
3. Stamen- Male reproductive part and collectively called as androecium.
4. Pistil- Female reproductive part and collectively called as gynoecium.

• A flower having these all 4 whorls is known as complete flower otherwise it will be called as incomplete flower.

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