Question

write the features of bryophyta?​

Answer 1

ANSWERS:-

BRYOPHYTA

Features:-

1) Bryophytes occupy the position between algae and pteridophytes.

2) Gametophyte is dominant phase on which sporophyte is dependent physically and physiologically.

3) Heteromorphic alternation of generation is present.

4) plant body is gametophytic (N). The gametophyte is represents generation in the life cycle of plant that has gamete. It is haploid.

5) Gametophyte may be thalloid or leafy.

6) Thallus is differentiated into photosynthesis and storage zone.

Thallus is differentiated into photosynthesis and storage zone. In leafy forms leaf like and stem like structures are resent.

7) Rhizoids are hairy structures which are responsible for Anchorage and absorption of water and soil solutes.

8) scales are present in liverworts which are multicellular, but one cell thick structure. They provide protection to growing tip. It can be ligulate.

Answer 2

Introduction of bryophyta:

• Bryophyta are the "amphibians of plant kingdom".

• They grow in shady places.

• Are abundantly found in tropical region.

• They lack vascular tissue like Xylem and phloem.

• They require water to complete their life cycle (for fertilisation).

• The sporangium is developed after fertilisation

• Bryophytes are classified into liveworths, hornwoths and mosses.

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What are their importance?

▪ Bryophytes are generally less important economically.

▪ Ecologically, mosses help in formation of soil

▪Mosses along with liches are helpful in colonizing rocks.

▪Peat moss is used as fuel.

▪Peat moss is also used for dressing wounds as it's absorptibe and extremely acidic.

▪The peat moss also helps in swimming pool sanitation