By Team Aakash Byju's | 29th January 2023

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

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.

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

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

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

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

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

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

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