Biology
Comparison between Pollination and Fertilization
Pollination and Fertilization:
Major differences
Pollination | Fertilization |
1. It is the transfer of pollen grains from anther to stigma of the flower | It is the fusion of male gametes and egg cell in embryo sac situated inside the ovule. |
2. This process takes place before fertilization | This process takes place after pollination |
3. For the completion of this process, insects, water, air like agencies are essential | There is no external medium for this process |
4. No pollen tube formation | Pollen tube is formed which transfer male gametes up to egg cell |
5. It takes place on outer parts of flower (external mechanism) | It occurs inside the flower (internal mechanism) |
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Mutualism
All flowers have mutualistic relationship with bees. In order to make their honey, bees travel from flower to flower collecting nectar. On the other hand, when the bee goes from flower to flower it brings pollen with her, resulting in pollination. The...
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Pollen: Evolution
In this picture is pollen that got stuck to the ground because of juice or water. Pollen has been flying around because plants and flowers are blooming and they are ready to fertilize. Pollen is like a tiny grain inside id a seed plant which usually...
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Comparison Between Self Pollination And Cross Pollination
Self pollination and Cross pollination: Major differences Self pollination Cross pollination 1. Pollen grains are transferred to stigma of same or genetically similar flower. Pollen grains are...
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2. Sexual Reproduction In Flowering Plants
Click here for PDFAll flowering plants (angiosperms) show sexual reproduction. PRE-FERTILISATION: STRUCTURES & EVENTS- Several hormonal and structural changes are initiated which lead to the differentiation and further development...
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1. Reproduction In Organisms
Click here for PDF- Reproduction is a process in which an organism gives rise to young ones (offspring) similar to itself. - The period from birth to the natural death of an organism represents its life span. - ...
Biology