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Which of the following is the female germ cell in plants?
Cells outside the ovule
Cells in the centre of ovule
Egg cell
Cell opposite to egg cell in an ovule
Egg cell
The egg cell (female gamete) is the female germ cell in plants. It is located inside the embryo sac, which resides within the ovule of the flower's ovary. Upon fertilization by a male gamete (sperm cell), the egg cell forms a diploid zygote that eventually develops into an embryo.
The egg cell (female gamete) is the female germ cell in plants. It is located inside the embryo sac, which resides within the ovule of the flower's ovary. Upon fertilization by a male gamete (sperm cell), the egg cell forms a diploid zygote that eventually develops into an embryo.
Think of the flower's ovary as a house, the ovule as a secure room inside, and the egg cell as the single vital key cell inside that room waiting to combine with a male cell to build a new plant seed.
Remember 'EGG' for Embryo-sac Germinating Gamete тАФ the core female cell that fuses to form the embryo.
Egg┬аCell┬а(n)+Male┬аGamete┬а(n)тЖТZygote┬а(2n) тАФ Syngamy (fertilization) process in plants
In angiosperms (flowering plants), the female gametophyte (embryo sac) typically consists of 7 cells and 8 nuclei. The egg cell is located at the micropylar end of the embryo sac, flanked by two synergid cells. During double fertilization, one sperm nucleus fuses with the egg cell nucleus (syngamy) to produce a diploid zygote (2n).
The egg cell is haploid (n) and serves as the female gamete in plant reproduction.
It resides at the micropylar end of the 7-celled, 8-nucleate female gametophyte (embryo sac).
Double fertilization is a characteristic feature of angiosperms, involving syngamy and triple fusion.
Plant breeding and hybridization techniques.
Understanding crop yield and seed formation mechanisms in agriculture.
Option A (Cells outside the ovule): Refers to ovarian tissues or floral parts, not germ cells.
Option B (Cells in the centre of ovule): Refers to the central cell containing two polar nuclei, which fuse with a male gamete to form triploid endosperm (3n).
Option D (Cell opposite to egg cell in an ovule): Refers to the antipodal cells located at the chalazal end, which typically degenerate.
C is correct тАФ The egg cell is the female germ cell (gamete) in plants that fuses with the male gamete during fertilization.
Frequently tested in competitive exams: Plant female gametophyte is 7-celled and 8-nucleate, where syngamy yields a diploid (2n) zygote and triple fusion yields a triploid (3n) endosperm.
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