Inferior plants ALGAE

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Inferior plants. Types of algae. Низшие растения. Водоросли.

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Inferior plants: ALGAE:

Inferior plants: ALGAE

Features of algae:

Features of algae The body doesn’t have organs. The body is called thallus ( слоевище) Pigments are in chromatophores

Algae:

Algae MULTICELLED: Laminaria sargassum UNICELLED (SINGLE-CELLED): Chlorella Chlamidomonada volvox

Structure of unicelled algae:

Structure of unicelled algae

Structure of multicelled algae:

Structure of multicelled algae THALLUS СЛОЕВИЩЕ ЧЕРЕШОК РИЗОИД УЗЕЛ ЛИСТОВАЯ ПЛАСТИНА

nutrition:

nutrition Autotrophic in light Heterotrophic deep-water algae in dark

Reproduction Sexual (meiosis) Asexual (mitosis) budding:

Reproduction Sexual (meiosis) Asexual (mitosis) budding

Budding:

Budding Multicelled algae reproduce by parts of thallus Unicelled algae reproduce by fission

Mitosis:

Mitosis Via spores or zoospores Spores do not move Zoospores have flagella

Reproduction:

Reproduction

meiosis:

meiosis 2 germs (gametes) are formed on different cells  1 zygote  new thallus Improves the adaptation of the algae Sporophyte – a plant which makes spores Gametophyte – a plant which makes gametes

meiosis:

meiosis

Diversity of algae :

Diversity of algae

Chlorophyta (green Algae):

Chlorophyta (green Algae) 7000 species unicellular, multicellular , colonial Spirogyra, Ulva , Chlamydomonas Store food as starch Live in freshwater Have flagella

Rhodophyta (red algae):

Rhodophyta (red algae) 4000 species Deep-water marine Multicellular Have thallus Have red, green and blue pigments Store food as starch Polysiphonia

Phaeophyta (brown algae):

Phaeophyta (brown algae) 1500 species Multicellular Have green and brown pigments The largest protists Kelps and seaweeds, Laminaria, Fucus Store food as laminarin Have thallus Make silt when they die

Kelp forest:

Kelp forest

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