2. Generally the number of cells present in gametophyte of angiosperm are-
   (1) 7 (2) 8
   (3) 3 (4) 5

Introduction

Angiosperms, or flowering plants, have highly reduced and specialized gametophytes compared to other plant groups. The female gametophyte, also called the embryo sac, is a critical structure in sexual reproduction. Typically, mature angiosperm female gametophytes consist of seven cells organized to facilitate fertilization and early embryo development.

Structure of Female Gametophyte (Embryo Sac)

• The female gametophyte generally contains 7 cells with a total of 8 nuclei: one egg cell, two synergid cells, three antipodal cells, and a central cell with two polar nuclei.​

• Egg cell: The single cell that fuses with a sperm cell to form the zygote.

• Synergids (2 cells): Located near the micropyle, they help guide the pollen tube for fertilization.

• Antipodal cells (3 cells): Found at the chalazal end, thought to nourish the embryo sac though their function varies.

• Central cell: Contains two polar nuclei which fuse with a sperm nucleus to form the triploid endosperm, supporting the developing embryo.​

Male Gametophyte Comparison

• Male gametophytes (pollen grains) are generally 2-3 celled structures by the time of pollination but are not the focus of this answer.​

Development and Function

• The embryo sac develops from a single megaspore via a specialized mitotic division pattern, resulting in the characteristic seven cells.​

• This highly conserved structure across most angiosperms ensures efficient fertilization and supports seed development.​

Summary Table: Female Gametophyte Cells in Angiosperms

Conclusion

The typical angiosperm female gametophyte contains 7 cells with 8 nuclei, organized for reproductive success. Therefore, the correct number of cells generally present in the gametophyte is 7.