The leafy stage in a moss develops from
SpletA protonema (plural: protonemata) is a thread-like chain of cells that forms the earliest stage of development of the gametophyte (the haploid phase) in the life cycle of mosses. When a moss first grows from a spore, it starts … SpletIn mosses, as in liverworts and hornworts, the leafy shoots belong to the gametophytic phase and produce sex organs when they mature. The leafy shoots (often called gametophores, because they bear the sex organs) arise from a preliminary phase called the protonema, the direct product of spore germination. Filamentous, straplike, or …
The leafy stage in a moss develops from
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http://www.nzplants.auckland.ac.nz/en/about/mosses/reproduction/moss-life-cycle.html SpletDevelopment of mosses in the leafy stage: Mosses exhibit generational alternation much as all other plants do. Gametophytic generation and sporophytic generation alternate. A gametophyte develops in two stages. The protonema stage develops from the …
SpletLeaves are one cell thick except at the midrib and lack stomata 2. The first gametophyte stage is protonema that is creeping and green 3. The second stage is the leafy stage, which develops from the secondary protonema as a lateral bud. 4. Rhizoids are elongated and unicellular Q 14: 65 % From NCERT (1) (2) (3) (4) Splet22. mar. 2024 · The gametophyte is the predominant stage in the life cycle of mosses which consists of two stages namely the juvenile stage adult leafy stage. In the juvenile stage protonema directly develops from spore and in the adult leaf stage, gametophore develops from protonema as a lateral adventitious bud.
SpletThe gametophyte refers to all organs and tissues that are a part of the haploid generation. There are two different developmental stages of the gametophyte: the protonema, and … Spletis distinguished by a unicellular haploid stage and a multicellular diploid generation consists of a diploid gametophyte stage alternating with a haploid sporophyte stage is distinguished by haploid and diploid stages that are both multicellular in extant plants cycles between homomorphic stages 2.
SpletPteridophyte gametophyte has a protonemal and leafy stage In gymnosperms female gametophyte is free-living Antheridiophores and archegoniophores are present in pteridophytes Antheridiophores and archegoniophores are present in pteridophytes 611 Views Switch Flag Bookmark Explain briefly the following terms with suitable examples: …
SpletThe zygote remains in this enclosure and does not pass a rest stage, but it develops inside the archegonium into a sporophyte. The diploid sporophyte grows thus on the … la county probation jobs openingSpletthallus contains rhizoids. they may be leafy or lobed. they may possess stomata. sexual reproduction is rare. thallus contains rhizoids. they may be leafy or lobed. Choose all … project handover process pptSpletIn due course one or more stems grow from the protonema and leaves develop on the stems, giving rise to one or more leafy-stemmed plants. In almost all moss species, the protonemata are ephemeral, with the leafy … project hannibal babcockSpletLife cycle of a moss. Gametophytic stage is the predominant stage of the moss lifecycle. The Gametophytic stage consists of two stages (i). Protenema stage – this is the first stage which develops directly from a spore. (ii). Leafy stage – this is the second stage which develops from the secondary protonema as a lateral bud. la county probation loginSplet29. jan. 2024 · What is leafy stage in mosses? The leafy stage in some mosses develops from a lateral bud in the secondary protonema. It is a small leafy structure consisting of … project happen oral careSplet26. mar. 2024 · In a plant’s life cycle, the spore-producing phase is called sporophyte. There are two stages of reproduction in plants: sexual and asexual. Through the process of meiosis and fertilization, the alternation … project handshake definitionSpletMassed moss protonemata typically look like a thin green felt, and may grow on damp soil, tree bark, rocks, concrete, or almost any other reasonably stable surface. This is a … la county probation invest program