How is archegonium produced?
Neck-canal cells, located above the egg, disappear as the archegonium matures, thus producing a passage for entry of the sperm. The sperm are produced in the corresponding male reproductive organ, the antheridium.
What type of reproductive cell does an archegonium produce?
At maturity, archegonia each contain one egg, and antheridia produce many sperm cells. Because the egg is retained and fertilized within the archegonium, the early stages of the developing sporophyte are protected and nourished by the gametophytic tissue.
What reproductive cell is produced in an archegonium?
The eggs are produced in tiny, typically somewhat flask-like structures called archegonia. Each archegonium holds one egg (in a swollen section called the venter) and the sperm enter through the channel in the narrower, tubular section (or neck).Sep 12, 2012
What reproductive cells are produced in the antheridium?
The antheridium is the male gametophyte and produces sperm cells (male gametes). The antheridium will produce numerous sperm for fertilization. The archegonia are the female gametophyte and will produce egg cells (female gametes). The archegonium will produce one egg at maturity.Mar 10, 2022
What gamete will you find inside of a plant archegonium?
Ans: The archegonium is a female sex organ in nonflowering plants. It houses the egg which is a female gamete. After fertilisation, it develops into a zygote.
What type of reproductive cell does an antheridium produce?
Each antheridium (male gametangium) forms many motile flagellate sperm, and each archegonium (female gametangium) forms one nonmotile egg. Fusion of an egg and a sperm (syngamy) creates a zygote and restores the 2n ploidy level.
Which type of gamete is produced by the archegonia?
An archegonium (pl: archegonia), from the ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete.
What gamete is produced by the archegonia?
An archegonium (pl: archegonia), from the ancient Greek ἀρχή ("beginning") and γόνος ("offspring"), is a multicellular structure or organ of the gametophyte phase of certain plants, producing and containing the ovum or female gamete.
Which type of gamete is produced by the antheridia?
An antheridium is a haploid structure or organ producing and containing male gametes (called antherozoids or sperm).
Where will fertilization occur in the antheridium or in the archegonium?
Some cells within the antheridia differentiate into motile, flagellated sperm, whereas a single cell develops into an egg within the archegonium. Fertilization occurs when the motile sperm swim up the neck canal of the archegonium and reach the egg.
Where does fertilization happen in Moss antheridium?
Fertilization occurs in the archegonium to form a diploid zygote.Sep 13, 2018