In the embryo sac of angiosperms, what is the correct order of the number of synergid cells, egg cell, central cell, and antipodal cells?

2–1–1–3

The correct order of the number of synergid cells, egg cell, central cell, and antipodal cells in the embryo sac of angiosperms is 2–1–1–3. So the answer is (c).

• Synergid cells: There are two synergid cells, which are located on either side of the egg cell. They have elongated filiform apparatus that help in guiding the pollen tube towards the egg cell.
• Egg cell: There is one egg cell, which is the female gamete. It is located at the micropylar end of the embryo sac.
• Central cell: The central cell contains two polar nuclei. These nuclei fuse to form the secondary nucleus.
• Antipodal cells: There are three antipodal cells, which are located at the chalazal end of the embryo sac. They degenerate after fertilization.

                           Embryo sac