Question:
Prothallus of Petridophytes is
Prothallus of Petridophytes is
Updated On: Jun 14, 2022
- conspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte
- inconspicuous, small, multicellular, free-living, photosynthetic thalloid gametophyte
- inconspicuous, large, unicellular, free-living, photosynthetic thalloid gametophyte
- inconspicuous, small, multcellular, free-living, non-phot.osynthetic thalloid sporophyte
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The Correct Option is B
Solution and Explanation
Prothallus of pteridophytes is inconspicuous small, multicellular, free living photosynthetic thalloid gametophyte. Haploid spore germinats to form a flat green heart shaped prothallus. It is monoecious, i.e., both sex organ male (antheridia) and female (archegonia) are present. Ferns exhibit alternation of generation.
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Concepts Used:
Pteridophytes
Pteridophytes are the first terrestrial vascular plants. Carolus Linnaeus classified them under the group cryptogamae. Pteridophytes occupy a transitional position between bryophytes and spermatophytes.
For Example, Silver fern, Equisetum, Selaginella
The general characteristics of Pteridophytes are:
- They are seedless.
- They are multicellular.
- They reproduce through spores.
- They are independent and free-living organisms.
- They have a well-differentiated plant body into root, stem and leaves.
Classification of Pteridophytes:
Life Cycle of Pteridophyta:
