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| Name | Double Fertilization 3d animated | Sexual Reproduction in Flowering Plants | Class 10 Biology |
| Video Uploader | Video From College Biology Tutorials |
| Upload Date | This Video Uploaded At 29-07-2023 07:36:42 |
| Video Discription | Topic: sexual reproduction in plants diversity of plants is due to sexual reproduction flowers are reproductive part of plant or modified shoot of plant. let's start with labelling the different parts of a flower Peduncle: The stalk of a flower. Receptacle: The part of a flower stalk where the parts of the flower are attached. the petals and the sepals protect the flower bud and can be brightly coloured or scented to attract pollinators. the stamen is the male part of the flower it consists of an anther where pollen is produced and the filament which is the stalk that supports the anther these structures are responsible for the production and the positioning of pollen the male gamete the female part of the flower is called carpal or pistil and this consists of three parts the stigma a sticky landing for pollen the style where the pollen grain descends and the ovary within the ovary ovules produce female gametes so how does pollination work Pollination can be best defined as the transfer of pollen from the male anther of a flower to the female stigma to produce new offspring. It can be pollinated in different ways 1st Entomophilic flowers– pollinated by insects. 2nd Hydrophilous Flowers- pollinated by water means. 3rd Ornithophilous flowers–pollinated by birds. 4rth Anemophilous flowers–pollinated by the agency of wind. a pollen grain is the haploid male gametophyte called a micro gametophyte the surviving megaspore divides by mitosis to produce seven haploid cells one large centrally located cell contains two nuclei called polar nuclei another cell is the egg the seven celled structure makes up the female gametophyte called the mega gametophyte the pollen grain pollinates the female When the pollen grain reaches at the stigma it germinates into a tube, called pollen tube. It passes through the style of carpel and reaches the ovule inside the ovary. Two sperms travel to micropyle, one sperm fuses with the egg cell and forms zygote. Another sperm with the definitive nucleus and forms endospermic nucleus. In this way double-fertilization occurs. The zygote develops into seeds and the ovary enlarges and becomes a fruit surrounding the internal seeds Seed germinate and life began please like and share our videos with your friends if you have any questions that you want help with just comment below https://youtu.be/4pia42HxdKs #double_fertilization, #double_fertilization_class_10, #double_fertilization_in_flowering_plants, double fertilization in angiosperms, double fertilization explained, #double_fertilization_and_triple_fusion, double fertilization in plants, double fertilization in flowering plants class 10, #angiogram_reproduction #plant_reproduction |
| Category | Education |
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