The largest cell of the ovule is the central cell.
The central cell is a significant component within the embryo sac of flowering plants (angiosperms). Located in the center of the embryo sac, it distinguishes itself as the largest cell within the ovule. Its primary characteristic is that it contains two polar nuclei. These two nuclei eventually fuse, forming a diploid secondary nucleus prior to fertilization. After fertilization with a sperm cell, this secondary nucleus develops into the triploid endosperm, which provides nourishment to the developing embryo.
Here's a breakdown of its key features:
- Location: Positioned centrally within the embryo sac.
- Size: Largest cell present within the ovule.
- Nuclear Content: Initially contains two polar nuclei.
- Function: After fertilization, it gives rise to the endosperm, a nutritive tissue essential for embryo development.
In summary, the central cell's size and ultimate role in forming the endosperm make it a crucial element for successful plant reproduction.
