the gametophyte is found where in flowering plants?

Question

for my
bilogy class

Answer 1

Gametophyte organs produce the sex cells (gametes), i.e. the pollen and ovules. The flower contains these organs (Stamen produces pollen - the male gamete. Pistil produces the ovules or eggs - female gametes). Pollination is when the pollen travels to the pistil; fertilization is the actual joining of the two gametes to form a zygote which will become a baby plant protected inside a seed. The other parts of the plant (the growing or vegetative parts like stems and roots) represent the sporophyte stage. The gametophyte stage (flowering) only appears when the plant has reached a specific stage in its maturity. Non-flowering plants (like mosses, ferns) spend a much greater part of their life in the gametophyte stage. Their reproductive organs work a little differently; they need water available to allow the sex cells to swim and be fertilized. Since this is not as successful for reproducing as pollination in flowers they have to spend more of their life cycle as gametophytes. There are some nice diagrams if you scroll down on this web page : http://waynesword.palomar.edu/lmexer8.htm

Answer 2

Either (male) in the pollen on the anthers on the stamen (microgametophyte) or (female) in the ovary --- at the center on the bottom of the pistil (megagametophyte.

In plants that undergo alternation of generations, a gametophyte is the structure, or phase of life, that contains only half of the total complement of chromosomes:

The sporophyte produces spores, in a process called meiosis. These spores develop into a gametophyte. These spores and the resulting gametophyte have only half of the total complement of chromosomes.
The gametophyte produces male or female gametes (or both), in a process called mitosis. The fusion of male and female gametes produces a zygote which develops into the sporophyte.
In mosses (bryophytes) the gametophyte is the commonly known phase of the plant. An early developmental stage in the gametophyte of both mosses and ferns (immediately following the meiospore) is called the Protonema.

In most other plants the gametophyte is very small (as in ferns) or even reduced as in flowering plants (angiosperms), where the female form (ovule) is known as a megagametophyte and the male form (pollen) is called a microgametophyte.

Answer 3

In short:

in angiosperms (flowering plants) the male and female gametophytes are reduced to three-celled and seven-celled structures and found within the reproductive organs of the familiar flowering plant (the sporophyte).

Answer 4

ovary