Sexual reproduction in angiosperms involves male and female gametes produced by flowers. The male part, the stamen, produces pollen grains in the anther. The female part, the carpel, contains the stigma, style and ovary with one or more ovules containing female gametes. Pollination is the transfer of pollen grains from the anther to the stigma, which can be self-pollination within the same flower or cross-pollination between different flowers. Fertilization occurs when the male gametes from the pollen tube fuse with the female gamete in the ovule, forming a zygote.

1. ICT based lesson
Topic: Sexual reproduction in Angiosperms
Submitted by Submitted to
Shilpa R Gote Smt. Rekha kittur
Roll No: 100

2. Sexual reproductive structure in
plants
Produces male and female
gametes
Fertilization takes place inside
the flower

4. Stamen is the male reproductive part of the
flower
It consists of ANTHER and FILAMENT
The anther produces pollen grains

6.  Carpel is the female reproductive part of the
flower
Top part of the carpel is called Stigma
Stigma is supported by the Style
Base part of the carpel is Ovary
Ovary contains one or more ovule. Each ovule
has a female gamete

8. Flowers which contains both male and female reproductive parts
are called Bisexual flowers

10.  Flowers which contains either male or female reproductive
part are called Unisexual flowers

12. The transfer of pollen grains from the anther to the stigma is
known as pollination.
Types of pollintion
Self pollination Cross pollination

13.  If the transfer of pollen grains takes place from anther of the
flower to the stigma of the same flower, then it is called as
Self pollination.
There are two types of self pollination
it takes place in the it takes place in different flower
Same flower of the same plant
autogamy Geitonogamy

15.  If the pollen grains transfers from anther of the
flower to stigma of the different flower.

16.  Wind – Anemophily
 Water- Hydrophily
 Animals-Zoophily
 Birds- ornithophily
 Insects-Entemophily

17. Anemophily

18. Hydrophily

19. Entemophily

20. Zoophily

21. Ornithophily

22.  Afrter the pollen grain lands on the stigma, the tube cell produces
a pollen tubethrough the style into the ovule.
 The male gametes travel through the pollen tube to reach the
ovule
 After it reaches to the ovule, one of the male gametes fuses with
the female gamete leading to Fertilization.
 Fertilization leads to formation of Zygote