Biology, asked by AryanMachhi, 11 months ago

charactarstic of thallophyta

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Answered by arc555
1
charactarstic of thallophyta are


1.They are usually found in moist or wet places.
2.This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals. Hence they are found in moist or wet places.
3.They are autotrophic in nature.
4.Most members in this group manufacture their own food.But a few members like fungi are dependent on other sources of food.,
5.Reserve food is generally starch.
6.After photosynthesis, glucose is produced and consumed almost immediately, the remaining glucose is converted into complex compounds called starch.
7.They have a cell wall composed of cellulose around their cells.
8.Absence of vascular tissue.Unlike other plants, xylem and phloem are absent. Etc
Answered by Anonymous
2
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➧Subkingdom Cryptogamae divided into three groups:-▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃▃⤵

❶❫ Thallophyta:-        ▬▬▬▬▬▬▬▬▬▬▬☟

①❭ Plants body remains in the form of Undifferentiated.

②❭ Vascular System is Absent.

③❭ Mode of nutrition is Phototrophic & Autotrophic.

④❭ Reproduction is both Sexual & Asexual.

⑤❭ Asexual reproduction takes place by Spore formation.

⑥❭ Fertilization is not followed by Embryo formation.

▶Ex:- Spirogyra, Ulva, Fucus, Volvax & Chara

❷❫ Bryophyta:-     ▬▬▬▬▬▬▬▬▬▬▬☟

①❭ Plant body is not differentiated into true roots, steam & leaves.

②❭ Non-vascular plant are not developed.

③❭ Fixation by rhzoids.

④❭ Gametophyte are the main plant.

⑤❭ Sex organs are multicellular.

⑥❭ Water is required for fertilization.

▶Ex:- Funaria, Riccia, Notothylus, Marchantia & Sphagnum

❸❫ Pteridophyta:-     ▬▬▬▬▬▬▬▬▬▬▬☟

①❭ Plant body is differentiated into true roots, steam & leaves.

②❭ Vascular plant are developed.

③❭ Fixation by roots.

④❭ Sporophyte are the main plant.

⑤❭ They are the first truly Terrestrial & vascular cryptogams.

⑥❭ Water is needed for fertilization.

▶Ex:- Azolla, Dryopteris, Marsilea, Equisetum & Selaginella

_________                Thanks...✊
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