WebIn the female cone, megaspore mother cells are present in the megasporangium. The megaspore mother cell divides by meiosis to produce four haploid megaspores. One of … WebMay 4, 2024 · Inside the megasporangium, the megagametophyte is developing. It is composed of synergid cells (on the micropylar end) flanking an egg. There is a vacuole (space) in the center of the megagametophyte. The polar nuclei and antipodal cells are on the opposite side.
Explain the structure of microsporangium and write the ... - Toppr
WebThe megaspores remain in them and divide by the mitosis for producing the haploid female gametophyte or megagametophyte that also stays inside them. The remnants of the megasporangium tissue are surrounding the gametophyte. The gametophytes produce archegonia and these produce the egg cells. WebMay 3, 2024 · The megasporangium is surrounded by a protective layer called the integument (F). Photo by Maria Morrow, CC BY-SA. The megagametophyte is part of the ovule and contains archegonia, each with an egg cell inside. The megagametophyte is retained within the megasporangium, which becomes the nucellus. malik thornton
CBSE Class 12 Biology –Chapter 2 Sexual Reproduction in …
WebStructure of Ovule or Megasporangium. A ridge or stalk-like outgrowth is formed from the placenta of the ovary on which the body of ovules is present. Structure of Megasporangium. Each ovule is attached to the placenta by means of a thin stalk called a funicle or funiculus. The point of attachment of the funicle with the ovule is called Hilum. WebHere we will see the structure and organization of Female Reproductive Structures. The female reproductive system of Cycasconsists of Megasporophyll, … WebA seed consists of three components: an embryonic sporophyte plant, a tissue that provides nutrition to that embryo, and a ‘seed coat’, the container tissue in which the embryo and nutritive tissue develop. The embryonic plant is diploid and it develops from a zygote formed by the union of egg and sperm. malik this is us