Question

With the help of a schematic diagram describe the haplo-diplontic life cycle pattern of a plant group.

Answer 1

The haplo-diplontic life cycle is seen in both pteridophytes and bryophytes. In bryophytes, the diploid phase is not independent, but in pteridophytes, it is. Furthermore, in pteridophytes, the sporophyte is more visible than in bryophytes. The major phase of the pteridophyte's life cycle is sporophyte. The given figure shows the haplo-diplontic life cycle.

Sporophyte: A sporophyte is a mature plant body. True roots, stems, and leaves are the three types of roots. In certain regions of the plant, the vascular tissue is well developed. The sporangia are carried by the sporophyte. Sporophylls are leaf-like appendages that protect Sporangia.

Spore Formation: To create spores, the spore mother cells in the sporangia undergo reduction division.

Spore Germination: Spores germinate to form the gametophyte. A gametophyte is a tiny, multicellular organism. It is a free-living, photosynthetic organism. It's known as prothallus. It has male and female gametes in the form of antheridia and archegonia. The male gamete is transferred through the pollen tube, and then fertilisation occurs.