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Protozoans: Animal-Like Protists
Unit 6 – Lecture 2
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Protists – General Char.
most diverse of any kingdom unicellular or multicellular microscopic or macroscopic heterotroph or autotroph asexual or sexual reproduction all are eukaryotic most live in water
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Protists – General Char.
divided into sub-sections: animal-like protists: protozoans plant-like protists [algae] fungus-like protists Some of the most harmful and beneficial orgs.
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Protozoans animal-like protists unicellular heterotrophic
mainly asexual reproduction
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Protozoans phyla are grouped by their method of movement ciliophora
zoomastigina pseudopods sporozoa
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Ciliophora ciliates sexual or asexual reproduction almost all benign
ex: paramecium
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Zoomastigina flagellates parasitic or beneficial
flagellate in termite gut giardia African sleeping sickness
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Discuss What is the term collectively for all animal-like protists?
How are all animal-like protists grouped? Organisms which move using cilia are in the phylum…? Organisms which use flagella to move are in the phylum…?
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Pseudopods phylum name: rhizopoda or sarcodina shapeless, no cell wall
most live in salt water asexual reproduction ex: amoeba
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Pseudopods ingest food via phagocytosis literally, cell eating
ingest water by pinocytosis literally, cell drinking causes amoebiasis – Montezuma’s Revenge – diarrhea, intense abdominal pain, dehydration white blood cells are NOT pseudopods – the image is to show phagocytosis.
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Sporozoa most produce spores non-motile almost ALL are harmful
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Sporozoa ex: P. falciparum – causes malaria – destroys blood cells, chills, fever, fatigue, death. ex: Toxoplasmosis – harmless to most adults, but can cause infant blindness, mental retardation, other deformaties
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Discuss What are the four phyla of protozoans by their… phylum names?
method of movement? Which phylum of protozoans contains organisms which are almost ALL parasitic? What are the two major functions of pseudopodia?
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Odd Orgs Out: Euglenophyta
Euglena not an animal- like protist, but has animal- and plant- like characteristics flagellum animal-like – may take in food plant-like – photosynthetic
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Homework complete the Amoeba Reading & Coloring w/s
color the letter titles individually [color inside of EACH letter, not over the letters]
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