Check sibling questions

Fertilization

  • Fertilization is defined as the fusion of male gamete present in pollen grains and the female gamete present in ovules to form zygote .
  • After the pollen grains land on stigma, a tube grows out of pollen grain and reaches the ovary via style and male gametes travel through this tube.

FERTILISATION - Teachoo.jpg

  FERTILIZATION TAKING PLACE IN THE OVULES PRESENT INSIDE OVARY

Post-fertilization Changes

  • The zygote which is formed after fertilization undergoes repeated cell division to form embryo within the ovule.
  • All the ovules develop a hard coat around itself and are converted into a seed .
  • The ovary matures into fruit containing seeds inside it. Therefore, the fruit protects the seeds.
  • The remaining parts of flowers such as petals, sepals, stamen, stigma etc. fall off after drying.
  • The seed contains the future plant or embryo . The process of development of embryo into seedling is known as Germination . Germination starts when a seed absorbs water, swells and bursts through the seed coat.

 

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Transcript

FERTILISATION Pollen grain Stigma Male gamete moves down the pollen tube Pollen tube Ovary Female gamete (Egg) Nucleus of female gamete Ovule

CA Maninder Singh's photo - Co-founder, Teachoo

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo