process of sexual reproduction in plants
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hello there !!
Sexual Reproduction in Plants:
When a small pollen grain from a male flower lands on the stigma of a female flower, it enters inside and reaches the ovule which in inside the ovary.
The embryo sac present inside a matured ovule of a flowering plant contains seven cells.
Among these one cell remains in the middle called central cell with two nuclei.
Remaining six cells divide into two parts and each part with three cells move to the opposite corners of the sac.
The three cells closest to the opening of the sac (micropyle) differentiate into one egg cell and two synergids. These three cells together are called “three celled egg apparatus of embryo”.
The other three antipodal cells degenerate.
The pollen nuclei (two) after entering inside the embryo sac fertilize the egg and the central cell. The fertilized egg produces zygote and the fertilized central cell produces endosperm.
Thus fertilization of flowering plant is also known as double fertilization.
hope this helps !! :)
Sexual Reproduction in Plants:
When a small pollen grain from a male flower lands on the stigma of a female flower, it enters inside and reaches the ovule which in inside the ovary.
The embryo sac present inside a matured ovule of a flowering plant contains seven cells.
Among these one cell remains in the middle called central cell with two nuclei.
Remaining six cells divide into two parts and each part with three cells move to the opposite corners of the sac.
The three cells closest to the opening of the sac (micropyle) differentiate into one egg cell and two synergids. These three cells together are called “three celled egg apparatus of embryo”.
The other three antipodal cells degenerate.
The pollen nuclei (two) after entering inside the embryo sac fertilize the egg and the central cell. The fertilized egg produces zygote and the fertilized central cell produces endosperm.
Thus fertilization of flowering plant is also known as double fertilization.
hope this helps !! :)
Dhiman011:
tnq ;)
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