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

By Team Aakash Byju's | 29th January 2023

Archegonium is the female sex organ that produces the female gamete or egg. It is present in the life cycles of bryophytes, pteridophytes and gymnosperms.

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A brief explanation of the Dryopteris fern's life cycle.

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Dryopteris is a common fern with pinnately-compound leaves. It has a sporophytic plant body.

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The lower surfaces of its adult leaves contain many sporangia. Each sporangium has spore mother cells which undergo meiosis to produce haploid spores.

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These spores develop into a heart-shaped gametophyte termed prothallus after dehisce and germinating.

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The male and female sex organs, known respectively as antheridia and archegonia are carried by the prothallus.

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Sperms produced by the antheridia swim in the water to reach archegonia. The egg is produced by the archegonia.

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During fertilisation, a zygote is formed. The zygote develops into an embryo, which in turn develops into a new sporophyte.

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Effects of Deforestation

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