name three groups of plants that bear archegonia. Briefly describe the life cycle of any one of them.
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Bryophytes, Pteridophytes, and Gymnosperms are the plants that bear archegonia.
The life cycle of Bryophytes
- Bryophytes are haploid, and they produce gametes. Sex organs in bryophytes are multicellular.
- The male sex organ is antheridium, which produces biflagellate antherozoids. Female sex organs are called archegonium which produces single egg.
- Antheridium releases antherozoids into the water which comes in contact with archegonium.
- An antherozoid fuses with the egg to produce the zygote.
- The zygote undergoes reduction division to produce a multicellular body called a sporophyte.
- Saprophytes undergo reduction division to produce haploid spores.
- These spores germinate to produce gametophyte
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