sperm cell and egg cells
Sperm cells and Egg Cells
The female organ that produces sex cells is called the ovary, and produces ova.
In most plants, the sporophyte generation is dominant. In fern, for example, the fern itself is the sporophyte. This organism produces spores that fall to the substrate below and grow into a separate organism called a gametophyte. The gametophyte produces sperm and eggs in order to produce a new sporophyte which grows out of the gametophyte's body, destroying it. It is important to note that the gametophyte is haploid and the sporophyte is dploid.
Gametophyte stage occurs when cells in reproductive organs undergo meiosis and produce haploid cells. Sporophyte stage is the joining of haploid sex cells. These two stages help in the production of a new plant.
meiosis
The process in which sex cells divide is called meiosis This is not, however; to be confused with mitosis, which is the division of non sex cells.
gametophyte stage
gametophyte
Gametophyte
Plants produce sperm cells and egg cells/ova as do animals. The exact structures may differ of course. Remember that plants have a gametophyte and sporophyte life stage. Only the gametophyte produces gametes/sex cells. The sporophyte produces spores. In the case of pollen, that is a type of spore which grows a gametophyte within itself which produces sperm.
Plants produce spores during the gametophyte, or haploid, stages. Spores are the sex cells for the plant. The spores will then germinate and produce new plants.
The process that produces haploid sex cells is mitosis.
The process that produces haploid sex cells is mitosis.
The female organ that produces sex cells is called the ovary, and produces ova.
A cell does not have a sex, it is neither male or female. It doesn't need fertilization from anything, it simply multiplies when a cell is about to die, creating new, healthier cells.
A spore grows into a heart shaped gametophyte. The gametophytes produces sex cells that unite to form a zygote. The zygote grows into a spore producing sporophyte.
Meiosis is the process that produces the sex cells.
No, it only seems that way to people whose knowledge of biology is confined to humans!In all plants, for example, meiosis produces spores, which divide a number of times by mitosis to produce a gametophyte. This can be substantial, as in many lower plants, or microscopic, as in flowering plants.The gametophyte produces gametes (sex cells) by mitosis and differentiation.