The right answer is antherozoids. Antherozoids are male gametes in bryophytes that are produced by the antheridium.
What is the male gamete of bryophytes?
Bryophytes have muticellular male sex organs called antheridia. Antheridia produce biflagellate male gametes called antherozoids. Antherozoids are released into water in which they swim to reach the archegonium or the female sex organ.
What are male plant gametes called?
Male gametes are sperm. Female gametes are eggs or ova. The plant life cycle has mitosis occurring in spores, produced by meiosis, that germinate into the gametophyte phase. Gametophyte size ranges from three cells (in pollen) to several million (in a “lower plant” such as moss).
Are bryophytes male or female?
In bryophytes, the antheridium is the male sex organ, which produces sperm. The archegonium, illustrated along with the antheridium in the fluorescence photomicrograph presented below, is the female reproductive organ, which produces eggs.
Are male gametes non motile in bryophytes?
As angiosperms and gymnosperm have non motile male gamete while algae, bryo do have motile..
How do male and female gametes meet in mosses?
Some successfully end up on female gametophyte moss plants and are chemically attracted to the archegonium. Each archegonium holds one egg, in a swollen section called the venter. The sperm enter the archegonium through the narrow channel in its neck. Fertilization occurs in the archegonium to form a diploid zygote.
Where are the male gametes?
Male gametes are contained within pollen grains, which are released from the anthers at anthesis.
What is male gamete in flowering plants?
The male gametes of angiosperms consist of two sperm cells within a pollen grain or a pollen tube. They are derived from a single generative cell, which is formed as the smaller cell by unequal cell division in the microspore after meiosis.
What is the male gamete in plants called What is the female gamete in plants called?
Male gamete in plant is called pollen grain that contains two sperm nuclei and female gamete is called ovule that contains egg cell and two polar nuclei.
Are bryophytes gametophyte?
Bryophytes are gametophyte dominant, meaning that the more prominent, longer-lived plant is the haploid gametophyte. The diploid sporophytes appear only occasionally and remain attached to and nutritionally dependent on the gametophyte.
How has the male gametophyte evolved in bryophyta?
Reliance on water and motile male gametes for sexual reproduction was retained by bryophytes and basal vascular plants, but was overcome in seed plants by the dispersal of pollen and the guided delivery of non-motile sperm to the female gametes.
Are all bryophytes dioecious?
All bryophytes are homosporous and monoecious but Marchantia is an exception as it is dioecious. The terms monoecious and dioecious in homosporous plants refers to the gametophytes. A monoecious moss species has archegonia and antheridia on the same gametophyte.
Are male gametes of Pteridophytes motile?
Bryophytes and Pteridophytes require water for fertilization and have motile male gametes.
Which has motile male gametes?
[Abstract] Motile male gametes (spermatozoids) of land plants are coiled and contain a modified and precisely organized complement of organelles that includes a locomotory apparatus with two to thousands of flagella.
Which of the following is a male and female gametophyte?
In gymnosperm (like Cedrus) the male and female gametophyte do not have an independent free living existence. They remain within the sporangia retained on the sporophytes i.e., female gametophyte with megasporangium and male gametophyte within microsporangium.