Kingdom Protista - Application of Biology - Lecture Slides, Slides of Biology

Download Kingdom Protista - Application of Biology - Lecture Slides and more Slides Biology in PDF only on Docsity! Kingdom Protista Chapter 20 Docsity.com What is a protist? • any organism that is not a plant, animal, fungus, or prokaryote. • Domain Eukarya, Kingdom Protists • Eukaryotic – HAVE A NUCLEUS • Mostly unicellular • Heterotrophic or autotrophic • Aquatic or moist habitats Docsity.com PLANT-LIKE PROTISTS Autotrophic – carry out photosynthesis Docsity.com •Phytoplankton (small, unicellular algae found near the surface of bodies of water) •produce about 75% of the Earth’s oxygen •Basis of most aquatic food chains Docsity.com Dinoflagellates • Red tides – increased nutrients cause protists to grow out of control • Some species produce a strong nerve toxin that gets into shellfish and can harm you if you eat it. Docsity.com Fungus-like protists • decomposers, have cell walls, and reproduce by spores • slime molds, water molds, and mildew • Attack potatoes, cabbage, and corn •The Great Hunger was caused by this group of protists Docsity.com • Plasmodium—carried by Anopholes mosquito • causes malaria • Trypanosoma—carried by the tsetse fly • causes African sleeping sickness • Giardia, Entamoeba, Cryptosporidium • causes amoebic dysentery Diseases cause by Sporozoans: Docsity.com •Toxoplasma gondii •Causes toxoplasmosis, can be contracted from an infected cat or poorly cooked meat. Harmful to a developing fetus. Docsity.com