Prothallus in a fern
WebbStudy with Quizlet and memorize flashcards containing terms like Which of the following terms includes all of the others in the list? A. gymnosperm B. vascular plant C. seed plant D. angiosperm E. fern, Which of the following was a significant new challenge plants faced in moving to land that they had not faced in their aquatic environment? A. predation B. … WebbDescribe the life cycle of a fern. Ferns produce spores in sori. The spores germinate into a prothallus. The prothallus produces sex cells. The sex cells unite to form a zygote. The …
Prothallus in a fern
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WebbProthallus of fern is flat, green, autotrophic, cordate (heart shaped), dorsiventral, about 1/8 to 113 inch in size (5-l0mm), free living independent, nonvascular gametophyte. … WebbProthallus is a small, flattened, multicellular structure that represents the independent gametophyte generation of a fern. The prothalli bear antheridia (male sex organs) and …
WebbFern prothallus is A Homothallic B Heterothallic C Heterotrophic D Heteromorphic Medium Solution Verified by Toppr Correct option is A) Fern prothallus is homothallic, bearing … Webb2 I can't seem to find an authoritative answer to this anywhere else online. Basically, my school text-book says the antheridium (male organ) is located on the lower surface of …
WebbFerns are flowerless plants reproducing with spores, whose complex (megaphyll-type) leaves contain a vascular system consisting of more than one vein conducting water and nutrients upward (xylem cells) and photosynthesized food downward (phloem cells).. The presence of a vascular system separates ferns from mosses, liverworts and hornworts. WebbThe prothallus is inconspicuous; it is only ½ inch or less and lies flat on the ground, with its own simple root system to gather nutrients and water. It is this little plant that then develops the organs for sexual reproduction to make a new fern. The prothallus grows male organs, which produce sperm, and female organs, which produce eggs, on ...
Webbför 2 timmar sedan · a gametophyte in the life cycle of fern? Rhizomes Prothallus Sporangia. Prothallus is a gametophyte in the life cycle of fern. Log in for more …
Webbprothallus cell of a fern; gemma cell in Marchantia; meristem cell of monocot, ovum of a liverwort, and zygote of a fern. Answer (a) Protonemal cell of a moss – Haploid (b) Primary endosperm nucleus in a dicot – Triploid (c) Leaf cell of a moss – Haploid (d) Prothallus of a fern – Haploid (e) Gemma cell in Marchantia – Haploid psychology inkblot testWebb23 jan. 2024 · Prothallus is the gametophyte of the fern and other pteridophytes species. Prothallus is a small, flat, green, heart-shaped structure often attached to a parent … hostedvirtuallybyavmaWebbAnswer (1 of 2): Prothallus is an alternate name for a fern gametophyte. They are non-vascular but are usually free-living and photosynthetic. they grow from spores through … psychology inner childWebb6 apr. 2024 · The prothallus of fern is(a)Heart-shaped(b)Dorsiventral(c)Green(d)All of the above 1. The prothallus is haploid 2. It grew from a spore which had been formed by … psychology inkblot testsWebb28 mars 2024 · Prothallus is a heart-shaped gametophyte present in pteridophytes. It is a 2-5 mm wide photosynthetic structure. Prothallus is attached to the soil with the help of … psychology inoculationWebbThe prothallus is the fern gametophyte. It is a green, photosynthetic structure that is one cell thick, usually heart or kidney shaped, 3–10 mm long and 2–8 mm broad. Prothallus of fern produces male and female gametes which after fertilization give rise to dioploid sporophyte which produces spores. The underside of the prothallus is where the … psychology inner selfWebbThe gametophyte phase of the fern life cycle begins with a spore.A fern spore is a haploid reproductive cell, which unlike the seeds of higher plants, does not contain an … psychology inner child work