Kingdom Protista

Kingdom Protista - Kingdom Protista Kingdom Protista “...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Kingdom Protista Kingdom Protista “ The Catch­All Kingdom” Protozoans Characteristics Characteristics Single celled Microscopic Move independently – named for mechanism of Move movement movement 65,000 species Most heterotrophic Free-living or parasitic All capable of asexual reproduction through All binary or multiple fission binary Some reproduce sexually through conjugation Sexual reproduction Sexual Asexual reproduction Asexual Binary Binary fission Schizogony Asexual reproduction in Asexual multiple fission, as in Malaria Malaria Classification Classification Currently based on HOW Currently they MOVE they Reviewing this by looking at Reviewing phylogeny phylogeny 4 Phyla of Protozoans Phyla Sarcodina Ciliophora Zoomastigina Sporozoa Adaptations Adaptations Physiological mechanisms, Physiological like eyespots like Form cysts Multiple nuclei Evolution of Protista Evolution Prokaryotes – 3.5 billion years ago Eukaryotes – 1.5 billion years ago Protozoan thought to be descendents of Protozoan first eukaryotes first Endosymbiotic Theory Endosymbiotic Theory Endosymbiotic Phylums… Phylums… Sarcodina Sarcodina 40,000 species Amoebas Pseudopodia – most move Cytoplasmic streaming Eat other protists Ecological roles: Ecological forams – tests made from caco3 – sink to bottom and make limestone and chalk deposits and Radiolaria – t4ests made form sio2 Cause diseases like amebic dysentary Phylum Ciliophora Phylum 8,000 species Move using cilia Pellicle, oral groove, gullet, macronucleus, Pellicle, micronucleus micronucleus Paramecium Phylum Zoomastigina Phylum 2,500 species Move using flagella Most free-living Cause disease – zooflagellates African trypanosomiasis – sleeping sickness – African tsetse fly tsetse Chagas Disease – kissing bug Leishmaniasis – sand fly giardiasis The tsetse fly – sleeping sickness vector vector The Kissing Bug The Leishmaniasis Leishmaniasis Phylum Sporozoa Phylum 6,000 species Carried in blood Cause disease like toxoplasmosis and Cause malaria malaria Know malaria cycle!!!! The end for now…. The This powerpoint was kindly donated to 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. ...
View Full Document

This note was uploaded on 11/07/2011 for the course BIOLOGY 100 taught by Professor Staff during the Winter '08 term at BYU.

Ask a homework question - tutors are online