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Yes, It is cool though because in seed plants the gametophyte is microscopic and remains in the sporophyte. It gains extra protection (UV light, Drying out ect) and nutrition. This increases the chance of survival when compared with the free living gametophytes of seedless plants. (awesome evolutionary step that lead to the increased probability of seed production)
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What are male gametophytes called?
It depends on whether you are talking about animals or plants. In plants it is a pollen grain (microgametophyte) and in animals is a sperm (spermatozoa)
Are all seed plants heterosporous?
heterosporous means that male and female organs are different. One structure produces eggs and other produces sperm. If a plant has seeds, which contains the embryo, then that clearly means sexual fertilization and a male/female gametophyte had to be involved. In short, yes. All seed plants are hetrosporous by that logic.
Is stamen the mature male gametophyte?
No. The stamen is the male structure of the flower, consisting of a filament and anther. However, the mature, male gametophyte consists of a germinated pollen grain with its tube and two associated sperm.
Where is the sperm located in gymnosperms?
The term "sperm" refers to a reproductive cell produced by male animals; plants do not produce sperm, but they do have an equivalent reproductive structure known as pollen; that is found on the stamen of a flower. The Male gametophyte contains sperm in plants.
What produces male reproductive cells?
sperm
Why dont the sperm nuclei of the male gametophyte of flowering plants have flagella?
During pollination, the sperm of the male gametophyte are not flagellated because they generally do not move. They rely on the growth of a pollen tube to deliver them to the egg cell.
What are male gametophytes called?
It depends on whether you are talking about animals or plants. In plants it is a pollen grain (microgametophyte) and in animals is a sperm (spermatozoa)
What is the role of gametangium in plants?
A gametopyte has haploid set of chromosomes whereas a sporophyte has diploid set of chromosomes. A gametophyte produces the gamets ( male & female) and a sporophyte produces spores in the sporangium. Germination of these spores results in the formation of gametophyte plants.
Are all seed plants heterosporous?
heterosporous means that male and female organs are different. One structure produces eggs and other produces sperm. If a plant has seeds, which contains the embryo, then that clearly means sexual fertilization and a male/female gametophyte had to be involved. In short, yes. All seed plants are hetrosporous by that logic.
What is the male sex cells of the flower?
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.
Compare the male and female spores of a conifer?
The female spores of a conifer are called megaspores or macrospores. Megaspores develop into a female gametophyte, producing egg cells. Male spores of a conifer are called microspores and are formed from meiosis. Microspores develop into the male gametophyte, which produces sperm cells.
The male reproductive structure of nonvascular plants is called?
The female gametophyte structure that produces eggs in nonvascular plants are called archegonia. The male structure that produces sperm are called antheridia. A gametophyte is the part of the plant that is responsible for creating gametes AKA sexual reproductive cell (sperm or egg). A nonvascular plant is a plant that isn't capable of transporting water and nutrients throughout itself very far because it lacks the proper vessels and veins for the transport. This causes these plants to be small in size so the plant doesn't have to transport the water and nutrients very far.
What structure does the male gametophyte become?
In flowering plants, megaspores become the female gametophytes.
does the sperm cell come from male or female?
Gametes come from both the mother and the father. The mother's gamete is known as an egg and the father's gamete is known as a sperm.
Is stamen the mature male gametophyte?
No. The stamen is the male structure of the flower, consisting of a filament and anther. However, the mature, male gametophyte consists of a germinated pollen grain with its tube and two associated sperm.
Where is the sperm located in gymnosperms?
The term "sperm" refers to a reproductive cell produced by male animals; plants do not produce sperm, but they do have an equivalent reproductive structure known as pollen; that is found on the stamen of a flower. The Male gametophyte contains sperm in plants.
What is a gametophyte?
A gametophyte is an organism in the life cycle of a plant that produces haploid gametes. It is the sexual phase of the plant life cycle and is the first stage in the alternation of generations between the gametophyte and sporophyte generations. The gametophyte produces male and female gametes, which are haploid cells that fuse to form a diploid zygote. The zygote develops into the sporophyte generation, which produces haploid spores that divide to form the next generation of gametophytes.
