4/16/19 1 Plant Notes Part I – Diversity of Plants Plants • Mul5cellular • Most photosynthe5c and contain chlorophyll • Cell walls made of cellulose • Food stored as starch • Vascular (having vascular 5ssue – true roots, stems, and leaves) and Nonvascular (no vascular 5ssue) What do plants need to survive? • Sunlight • Water and minerals • Gas exchange • Movement of water and nutrients Alterna5on of Genera5ons • Mitosis and meiosis alternate to produce 2 types of reproduc5ve cells – gametes and spores • Sporophyte – (n – haploid) spore producing plant • Gametophyte (2n- diploid) gamete- producing phase Early Plants • The first plants evolved from an organism much like mul5cellular green algae Types of Plants: • Non-vascular – mosses, hornworts, liverworts • Seedless vascular – ferns, horsetails, club mosses • Cone-bearing seed plants – cycads, ginko, conifers • Flowering plants - angiosperms
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Bee Plant Notes - Springfield Public Schools Plant...(horsetails) Lycophyta (club mosses) Ferns, Horsetails, Club Mosses Features of Roots, Stems, and Leaves • Roots – absorbs
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