Sexual Reproduction In Flowering Plants

Class 12th Biology 

Chapter 02

Sexual Reproduction In Flowering Plants 

Lecture 01

General Introduction 

Morphology Of Flower

Terminology 

1.1 Flower – A Fascinating Organ Of Angiosperms 

1.2 Pre Fertilization: Structure and Events

1.3 Double Fertilization 

1.4 Post Fertilization: Structure and Events

1.5 Apomixis and Polyembryony 

Reproduction in plants includes both sexual and asexual means. Most flowering plants reproduce sexually, ultimately producing flowers. Flowers are vital in the process of sexual reproduction. This is why flowers are also referred to as the reproductive part of a plant. The complete flower typically consists of:

1. Pedicel

2. Sepals

3. Petals

4. Calyx

5. Stamen- the male reproductive part comprises the anther and filament.

6. Pistil – the female reproductive part comprising three parts – stigma, style, and ovary.

The male and the female reproductive structures in flowers, the androecium and the gynoecium, differentiate and further undergo development.

Hormonal and structural changes initiated leading to differentiation and development of floral primordium.

Inflorescence are formed which bear the floral buds and then flowers.