1. Sexual & Asexual reproduction
Lesson 3

2. Lesson 3
Pollination and fertilisation (in plants)

3. Plant reproduction: copy
There are two stages of plant reproduction:
Pollination and Fertilisation

4. Plant reproduction
The pollen grains (MALE SEX CELL) need to move from the anther (MALE) to the stigma (FEMALE)
Pollen transferred to female reproductive organ (stigma)

5. Pollination
SELF-POLLINATION- the transfer of pollen from anther to stigma on the SAME plant
CROSS-POLLINATION- the transfer of pollen from anther to stigma on DIFFERENT plant

6. Pollination- copy
Pollination is when the pollen is transferred from the anther to the female reproductive organ- the stigma
There are two types- self pollination (transfers to the same plant) and cross-pollination (transfer from different plants)

10. Copy Pollination can be carried by either THE WIND or by INSECTS.
Insect and wind pollinated plants look and smell very different

13. Fertilisation
Fertilisation occurs after the pollen grain lands on the stigma
The pollen grain grows a tube which reaches the ovule- the pollen then travels down the tube and FUSES with the ovule to form a zygote

14. Fertilisation The OVARY becomes the FRUIT and OVULES become the SEEDS
PETALS then die and drop off

15. Fertilisation: copy
After landing on the stigma- the pollen grows a pollen tube
The pollen travels down the tube to the ovule- both nuclei fuse and form a zygote which later becomes the seed