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PROTISTA
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Animations & Videos Endosymbiosis
(Bozeman) (in plain English) (detailed animation) Chloroplast evolution animation Kingdom Protista intro amoeba feeding cytoplasmic streaming _cytoplasmic_streaming.html paramecium flagella & cilia malaria hill.com/sites/ /student_view0/chapter20/malaria__life_cycle_of_plasmodium.html Algae
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Protista Classification: Animal-like = Protozoa Plant-like = Algae
Fungus-like = Moulds All live in aqueous / moist environments
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PROTOZOA Phyla for protozoa are based on type of locomotion / mobility
Common Name Proper Phyla Name Example Protozoa Flagellates Zoomastigina Trypanosoma Sarcodines Sarcodina Amoeba Ciliates Ciliophora Paramecium Sporozoans Sporozoa Plasmodium
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Flagellates / Zoomastigina
Has one or more flagella Has hard, protective covering Freeliving, parasitic and symbiotic Ex. Trypanosoma – African Sleeping Sickness Human parasite
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Sarcodines / Sarcodina
Have pseudopodia Mostly live in animal intestines A few parasites, free-living Example: Amoeba Pseudopodia allows it to move and engulf prey Have ectoplasm and endoplasm Feed via phagocytosis Reproduction by binary fission
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Ciliates / ciliophora Has cilia (hair-like structures)
Free-living, symbiosis, parasites 2 nuclei One for macro controls – cell activities One for micro controls – reproduction
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Sporozoans / Sporozoa No flagella, cilia or pseudopodia
Generally parasites Have few organelles and specialized structures Complex life cycles Reproduce without fertilization (ex. Spores)
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ALGAE ( Plant-like protists)
Protists that contain chlorophyll Lack the leaves, stems, roots and water-conducting tissues Algae are classified into six phyla, based on the type of chroloplasts and pigments they have
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Phylum: Chlorophytes -Autotrophs
-Pigments: chlorophyll a and b, carotenoids -Live in fresh water, some in moist soils and costal tropical seas -Some are unicellular and some are multicellular Examples: Green Algae, Spirogyra, Volvox
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Phylum: Phaeophytes -Autotrophs
-Pigments: chlorophyll a and c, carotenoid, fucoxanthin -Live in colder seawater Examples: Brown Algae, Kelp, Rockweed
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Phylum: Rhodophyta -Autotrophs
-Pigments: chlorophyll a, carotenoids, phycobilin -Some live in fresh water, but mostly in warmers sea water Example: Red Algae
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Phylum: Chrysophyta -Autotrophs
-Pigments: chrolophyll a and c, carotenoids -Live in fresh and salt water -Diatoms are generally unicellular -Diatoms are a major source of oxygen -Diatoms are the biggest component of plankton Example: Golden-Brown Algae, Diatoms
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Phylum: Pyrophyta -Autotrophs
-Pigments: chlorophyll a and c, carotenoids -Unicellular -Major component of oceanic phytoplankton Example :
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Phylum: Euglenophyta -Autotrophs or heterotroph
-Pigments: chlorophyll a and c, carotenoid -Half of them do not have chloroplasts -Unicellular -Live in fresh water Example : Euglena
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MOULD – Fungus-like Slime Mould Water Mould
Difficult to classify because they are like: Protozoa since they glide Plants since they have cellulose cell wall Fungi since they produce spores
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Here’s the Breakdown: Phyla: Oomycota Phyla: Myxomycota
Water PROTISTA Slime Phyla: Myxomycota Phyla: Acrasiomycota
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Phylum: Oomycota -Saprotrophs -Some are parasites 175 species
Example: Water mould
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Phylum: Myxomycota -Slug-like organisms -Contain many nuclei
-Feed by engulfing -Spores are produced during sexual reproduction -560 species Example: Plasmodial slime moulds
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Phylum: Acrasiomycota
-Exists as individual amoeboild cells with 1 nucleus -Feed by ingesting yeast, bacteria -65 species Example: Cellular slime moulds
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