Double Fertilization (Sexual Reproduction In Flowering Plants)
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Transcript of Double Fertilization (Sexual Reproduction In Flowering Plants)
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Reproduction In Flowering Plants
Key Words:+ Pollination+ Fertilization+ Zygote+ Fruit+ Seed
Presentation by: Hamza Raza Ayesha Arif Ammar Shaikh Zainab Adnan GRADE 11The City School InternationalWhole Hearted Thanks to Our Bio Teacher Miss Iram
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Pollination
• The transfer of pollen from the anthers to the stigma.
• Cross or self-pollination• Flower is wind or insect
pollinated• Anthers contain pollen,
which contain male gametes. Ovary contains female gametes
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Fertilization
• Pollen make tube to ovary by secreting enzymes
• One gamete can only fertilize one female gamete
• When the gametes fuse, zygote is formed
• Fertilization has taken place
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The Fruit
• Ovary becomes fruit, shielding the seed
• The seeds are dispersed by animals, water or air
• The seeds grow to become a plant
• Thus, the cycle shown is repeated
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Thank you