The Pterydophyta

The Pterydophyta

Hi viewers Today we will discuss about the world of Pterydophyta Definition of Pterydophyta Pteridophytes are vascular plants that reproduce and disperse via spores, these plants produce neither flowers nor seeds and it also show alternation of generation. PROPERTIES PTERYDOPHYTA Autophytic nutrition. Terrestrial Body is divisible into root, stem and leaf They are nonflowering plants Reserve food material is starch Cell wall- cellulose Sporophytes and Gametophytes are separate plants Adult life starts with sprophyte Chemotropism- occurs by synthesis of malic acid Vascular tissue is present Eg. Any kind of fern 1.  What are the main characters of Pteridophytes? (3) Ans. The main characters of Pteridophytes are in the following: a) Pteridophytic plants are advanced than the bryophytes but less advanced than gymnosperms, and mostly they are terrestrial. b) They are non-flowering plants, and do not bear flowers, fruits and seeds. c) The leaves are generally of two types- small and scale like microphyllous and large megaphyllous. d) The plant body is the sporophyte, which is well developed, autotrophic and long lived....
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The Bryophyta

The Bryophyta

Hi viewers Today we will discuss about the world of Bryophyta Definition of Bryophyta A division of nonflowering plants characterized by rhizoids rather than true roots and having little or no organized vascular tissue and showing alternation of generations between gamete-bearing forms and spore-bearing forms; comprises true mosses (Bryopsida) and liverworts (Hepaticopsida) and hornworts (Anthoceropsida) PROPERTIES BRYOPHYTA Autophytic nutrition. Terrestrial Aphibians among the Plant Kingdom because it needs water during the reproduction Thallus body Reserve food material is starch Cell wall- cellulose Sporophyte depends upon the gametophyte Adult life starts with gametophyte Chemotropism- occurs by synthesis of sucrose Vascular tissue is absent Eg. Any kind of moss Q and A on Bryophyta What are the main characters of Bryophyta? (3) Ans. The main characters of Bryophyta: a) Bryophyta is a kind of non-flowering, autophytic independent plant. b) The gametophytic plant body of the lower Bryophytes are not differentiated into root, stem and leaves, Eg.- Riccia. They are thallus like. c) Conducting tissue systems (xylem and phloem) are absent. It...
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