STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
ANATOMY OF FLOWERING PLANTS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Germination
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Reproduction
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Regeneration
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Pollination
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Detailed explanation-1: -Pollination is simply the transfer of pollen grains from an anther to a stigma. Fertilization occurs much later when the pollen grains germinate on the stigma and send down a pollen tube which releases the sex cells to fertilize the ovules.
Detailed explanation-2: -Anemophilous: Anemophilous pollination is a form of pollination where pollen grains are distributed via wind. In all wind-pollinated flowers, the mature stigma is found rough and sticky.
Detailed explanation-3: -When the pollen grain germinates on the stigma it creates a burrow called the pollen tube as it travels toward the ovary. When the sperm cell from the pollen grain reaches the ovary or ovule the sperm joins with the egg. This is called fertilization. The fertilized zygote will become a tiny new plant inside the seed.
Detailed explanation-4: -Pollination : The mechanism of transferring pollen grains from the anther of one flower to the stigma of another flower of the same or different plant is called pollination. The pollen grains can be transferred to the stigma of the flower through wind, water and insects called pollinating agents.
Detailed explanation-5: -Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.