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Green Algae

Green Algae. Phylum ____________ Habitat: widespread in marine and ______ water Notes: Very diverse group, hard to generalize about their ecology May be _________, filamentous or colonial, or multicellular. Filamentous Green Algae _________ has spiral-shaped __________.

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Green Algae

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  1. Green Algae • Phylum ____________ • Habitat: widespread in marine and ______ water • Notes: • Very diverse group, hard to generalize about their ecology • May be _________, filamentous or colonial, or multicellular

  2. Filamentous Green Algae_________has spiral-shaped __________

  3. Filamentous with spiral chloroplast in each cell Forms green “____” in ponds Pyrenoids (sites of starch storage) occur in the chloroplast Asexual reproduction is by __________of the filament. CHLOROPHYTA--SPIROGYRA

  4. Spirogyra_________, a form of sexual reproduction

  5. another filamentous Green Algae ____________ Star-shaped chloroplasts per cells

  6. a colonial Green Algae … _______________ colony with Daughter colonies Mother Colony Daughter Colony

  7. SPHERICAL COLONY OF ____________ CELLS (colony is motile) Flagella on one side, ___ ___ ____ on other ASEXUAL REPRODUCTION: A SURFACE CELL DROPS INSIDE BALL AND BY _______ PRODUCES DAUGHTER COLONY. PARENT COLONY EVENTUALLY ______ TO RELEASE DAUGHTER COLONIES. CHLOROPHYTA--Volvox

  8. Daughter cells remain attached to the parent cells COLONY Colonial Green Algae, Volvox

  9. In some species the colonies are ____________. Male and female colonies form different germ cells. ______ cells are formed by division. The female germ cells do not divide. They enlarge to form an ova.

  10. Oedogonium thallus http://www.plingfactory.de/Science/GruKlaOeko/Teichleben/Algen/Oedogonium%20sp..jpg

  11. Oedogonium Here the filaments are out of focus. The asexual __________ is in focus. http://www.botit.botany.wisc.edu/images/130/Chlorophyta/Oedogonium_Images/Zoospore_MC.low.jpg

  12. http://www.csupomona.edu/~jcclark/classes/bot125/resource/graphics/g/chl_oedogonium.jpghttp://www.csupomona.edu/~jcclark/classes/bot125/resource/graphics/g/chl_oedogonium.jpg Oedogonium This is the zoospore, or maybe it is the sperm. Both have the same look! http://www.biologie.uni-hamburg.de/b-online/fo44/18.jpg When both oogonium and __________ appear on the same filament the alga is ___________.

  13. ________ fresh-water algae some cells of the filament become oogonia (egg-producing structures) some cells become antheridia(____-producing structures) sexual and _____ reproduction CHLOROPHYTA – Oedogonium

  14. Filamentous fresh-water alga ______ reproduction is by zoospore production CHLOROPHYTA--Ulothrix • Sexual reproduction involves • flagellated ___________

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