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Kingdom Protista PowerPoint Presentation

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Kingdom Protista Presentation Transcript

Slide 1 - Kingdom Protista “The Catch-All Kingdom” Protozoans
Slide 2 - Characteristics Single celled Microscopic Move independently – named for mechanism of movement 65,000 species Most heterotrophic Free-living or parasitic All capable of asexual reproduction through binary or multiple fission Some reproduce sexually through conjugation
Slide 3 - Sexual reproduction
Slide 4 - Asexual reproduction Binary fission
Slide 5 - Schizogony Asexual reproduction in multiple fission, as in Malaria
Slide 6 - Classification Currently based on HOW they MOVE Reviewing this by looking at phylogeny
Slide 7 - 4 Phyla of Protozoans Sarcodina Ciliophora Zoomastigina Sporozoa
Slide 8 - Adaptations Physiological mechanisms, like eyespots Form cysts Multiple nuclei
Slide 9 - Evolution of Protista Prokaryotes – 3.5 billion years ago Eukaryotes – 1.5 billion years ago Protozoan thought to be descendents of first eukaryotes Endosymbiotic Theory
Slide 10 - Endosymbiotic Theory
Slide 11 - Phylums…
Slide 12 - Sarcodina 40,000 species Amoebas Pseudopodia – most move Cytoplasmic streaming Eat other protists Ecological roles: forams – tests made from caco3 – sink to bottom and make limestone and chalk deposits Radiolaria – t4ests made form sio2 Cause diseases like amebic dysentary
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Slide 14 - Phylum Ciliophora 8,000 species Move using cilia Pellicle, oral groove, gullet, macronucleus, micronucleus Paramecium
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Slide 16 - Phylum Zoomastigina 2,500 species Move using flagella Most free-living Cause disease – zooflagellates African trypanosomiasis – sleeping sickness – tsetse fly Chagas Disease – kissing bug Leishmaniasis – sand fly giardiasis
Slide 17 - The tsetse fly – sleeping sickness vector
Slide 18 - The Kissing Bug
Slide 19 - Leishmaniasis
Slide 20 - Phylum Sporozoa 6,000 species Carried in blood Cause disease like toxoplasmosis and malaria Know malaria cycle!!!!
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Slide 22 - The end for now….
Slide 23 - This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.