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Download Biology Topic 7: Algae, spore-bearing plants VOCABULARY
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Gymnázium, Brno, Slovanské nám. 7, WORKBOOK - Biology Topic 7: Algae, spore-bearing plants VOCABULARY antheridia – in mosses, reproductive structures that produce sperm archegonia - in mosses, reproductive structures that produce egg cells chemotaxis – in mosses, the responsive movement of sperm toward attractantproducing archegonia collenchyma cell – often elongated plant cell that occurs in long strands and provides flexibility for the plant, support for surrounding tissue, and functions in tissue repair and replacement companion cell – nucleated cell that helps the mature sieve tube member function in transporting dissolved substances in the phloem of vascular plants cork cambium – meristematic tissue that produce cells with tough cell walls that form the protective outside layer on stems and roots gemmae – in liverworts, small multicellular reproductive structures ground tissue – plant tissue category consisting of parenchyma, collenchyma, and sclerenchyma heterosporous – able to produce two types of spores, megaspores and microspores, that develop into female or male gametophytes leaves – photosynthetic organs that contain one or more bundles of vascular tissue lichen – symbiotic relationship between a fungus (usually an ascomycete) and an alga or photosynthetic partner meristem – region of rapid cell division in plants; produces cells that can develop into many different types of plant cells nonvascular plant – type of plant that lacks vascular tissues, moves substances slowly from cell to cell by osmosis and diffusion, and grows only in a damp environment parenchyma cell – spherical, thin-walled cell found throughout most plants that can function in photosynthesis, gas exchange, protection, storage, and tissue repair and replacement phloem – vascular plant tissue composed of sieve tube members and companion cells that conducts dissolved sugars and other organic compounds from the leaves and stems to the roots, and from the roots to the leaves and stems prothallus – heart-shaped, tiny fern gametophyte protonema – small, threadlike structure produced by mosses that can develop into the gametophyte plant rhizoids – long, thin cells that anchor mosses in the ground and absorb water and minerals from the surrounding soil rhizome – fern’s thick underground stem that functions as a food-storage organ root – underground organ, absorbs water and minerals sclerenchyma cell – plant cell that lacks cytoplasm and other living components when mature, leaving thick, rigid cell walls that provide support and function in transport of materials sieve tube member – nonnucleated, cytoplasmic cell of the phloem sorus – fern structure formed by clusters of sporangia, usually on the undersides of a frond INVESTICE DO ROZVOJE VZDĚLÁVÁNÍ Gymnázium, Brno, Slovanské nám. 7, WORKBOOK - Biology stem – supporting structure that connects roots and leaves, carrying water and nutrients strobilus – compact cluster of spore-bearing structures in some seedless vascular plant sporophytes thallose – liverwort with a fleshy, lobed body shape tracheid – long, cylindrical plant cell in which water passes from cell to cell through pitted ends vascular cambium – thin cylinder of meristematic tissue that produce new transport cells vegetative reproduction – asexual reproduction in which new plants grow from parts of an existing plant vessel element – elongated, tubular plant cell that forms xylem strands (vessels) and conducts water and dissolved substances xylem – vascular plant tissue that transports water and dissolved minerals away from the roots throughout the plant and is composed of vessel elements and tracheids INVESTICE DO ROZVOJE VZDĚLÁVÁNÍ