Question

what is the meaning of nucellus and what is its function?

Answer 1

In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells. It consists of three parts: The integument(s), forming its outer layer(s), the nucellus (or remnant of the megasporangium), and the female gametophyte (formed from a haploid megaspore) in its center. The female gametophyte — specifically termed a megagametophyte— is also called the embryo sac in angiosperms. The megagametophyte produces an egg cell (or several in some groups) for the purpose of fertilization.

Answer 2

Nucellus is the megasporangium of a seed-bearing plant, located in the ovule.     Function: Nucellus give nutrition to the megaspore .      Hope it helps...