Question

Name the three groups of plants that bear archegonia. Brefily describe the life cycle of any of them

Answer 1

Answer:

Three groups of plants that bear archegonia are bryophytes, pteridophytes and gymnosperms.

Answer 2

Answer:

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