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  • PowerPoint Presentation
    Biology Microalgae: microscopic single-celled eukaryotic planktonic algae To be magnified 100 – 400X in order to recognize family Reproduction by cell division Some species have own movements by flagella, other drift passively Divided in 9 divisions according to pigment types etc Photoautotrophic (also heterotrophic) organisms Photosynthesis Growth dynamics Growth dynamics Light Nutrients
  • INTRODUCTION TO ALGAL CHARACTERISTICS AND DIVERSITY
    * The life cycles in algae Life-cycle III (Diplobiontic life cycle): three multicellular phases, the gametophyte and one or more sporophyte(s) Gametophyte: typically haploid, produces gametes by mitosis Sporophyte: typically diploid, produces spores by meiosis Isomorphic: sporophyte and gametophyte look alike Heteromorphic: sporo- and gametophyte look different Basis of algal Classification
  • Algae - هيئة التدريس جامعة الملك سعود
    • Nearly 75% of the world’s oxygen produced by algae • One of the major food source of marine ecosystems • Eukaryotic, photosynthetic (autotrophs) STRUCTURE Four types of algae Unicellular Colonial Filamentous multicellular THE TYPE OF ALGAE Unicellular Colonial Filamentous multicellular CLASSIFICATION OF ALGAE SEVEN PHYLUM BASED ON COLOR TYPE OF CHLOROPHYLL FOOD-STORAGE SUBSTANCE CELL





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