Bryophytes (liverworts and mosses) have a dominant gametophyte (haploid) stage. Reproduction involves antheridia and archegonia; the zygote develops into a sporophyte without meiosis. The sporophyte is attached to and derives nutrients from the gametophyte. Some sporophyte cells undergo meiosis to produce spores that germinate into gametophytes. Sphagnummoss provides peat and retains water.
Bryophytes (liverworts and mosses) have a dominant gametophyte (haploid) stage. Reproduction involves antheridia and archegonia; the zygote develops into a sporophyte without meiosis. The sporophyte is attached to and derives nutrients from the gametophyte. Some sporophyte cells undergo meiosis to produce spores that germinate into gametophytes. Sphagnummoss provides peat and retains water.
| Subject | Bryophytes (amphibians of plant kingdom) |
|---|---|
| Extra | liverworts and mosses |
| Q1 | main plant body |
| Q1 Answer | gametophyte (haploid) |
| Q2 | reproduction |
| Q2 Answer | antheridium and archegonium are reproductive sex organs. the zygote doesn't undergo meiosis and develops into sporophyte |
| Q3 | sporophyte is attached to ____ |
| Q3 Answer | photosynthetic gametophyte, derives food from it |
| Q4 | sporophyte life cycle |
| Q4 Answer | some sporophytic cells undergo meiosis to give haploid spores that germinate into gametophyte |
| Q5 | examples |
| Q5 Answer | sphagnum (a moss, provies peat, can hold water) |
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