Ovule vs. Ovum

By Jaxson

  • Ovule

    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, forming its outer layer, 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 for the purpose of fertilization.

Wikipedia
  • Ovule (noun)

    The structure in a plant that develops into a seed after fertilization; the megasporangium of a seed plant with its enclosing integuments.

  • Ovule (noun)

    An immature ovum in mammals.

  • Ovum (noun)

    The female gamete in animals; the egg cell.

Wiktionary
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