Reproduction in plants

Sexual and asexual reproduction in plants
Class 7

1. CHAPTER – 09 CLASS – 7 th R eproduction in plants

2. Do you know what is Reproduction? The production of new organisms from their parents is called reproduction.

3. Asexual Reproduction The type of reproduction in which new plants arise without the formation of seeds

4. Vegetative propagation The type of reproduction in which new plants arise from vegetative parts of the plant is called vegetative propagation.

5. Budding The reproduction which occurs through the formation of buds is called budding. Bud – The small bulb like projection coming out from cell is called bud.

6. The reproduction through the formation of spores is called spore formation. Spore formation

7. Fragmentation The type of reproduction in which a cell breakes up into two or more fragments.

8. Sexual reproduction The type of reproduction in which new plants arise with the formation of seeds. In this type of reproduction, the reproductive parts of a plants i.e , flowers are involved .

9. Pistil Petals Sepals

10. Types of flower Unisexual – Consist either stamen or pistil but not both. E.g . Corn, papaya & cucumber . Bisexual – Consist both stamen and pistil. E.g . Mustard and rose.

11. The process of transfer of pollen grains from stamen of a flower to pistil of the same or different flower is called pollination. It is of two types as :- a . Self Pollination b . Cross Pollination POLLINATION

12. 1. A same kind of plant grows in different places . It is due to the process of seed dispersal . 2. The process of carrying of seeds from one place to another is called seed dispersal . SEED DISPERSAL

13. Can you guess by the help of which agents the seed dispersal can take place.