Protists
45 words
Protists
 Animal-like vs Plant or Fungus like..
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Called Protozoans
Divided into 4 groups
• Pseudopods
– False Feet.
– Move by bulging cell membrane and flowing cytoplasm.
Pseudopods
http://www.cartage.org.lb/en/themes/sciences/BotanicalSciences/MajorDivisions/KingdomProtista/Protists/protists.htm
Pseudopods
Amoebas (Phylum Rhizopoda)
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/sundr.html
Protists
 Animal-like vs Plant or Fungus like..


Called Protozoans
Divided into 4 groups
• Ciliates
– Have cilia
– Hair like projections used for moving, sensing and
obtaining food
Ciliates
http://www.cartage.org.lb/en/themes/sciences/BotanicalSciences/MajorDivisions/KingdomProtista/Protists/paramecium.gif
Ciliates
http://microbes.limnology.wisc.edu/outreach/pondsamples.php
Ciliates
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artaug98/suctoria.html
Protists
 Animal-like vs Plant or Fungus like..

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Called Protozoans
Divided into 4 groups
• Zooflagellates
– Long whip like flagella
Zooflagellates
http://www.morning-earth.org/Graphic-E/BIOSPHERE/Bios-C-ProtistsProtozoa.htm
Zooflagellates
http://www.morning-earth.org/Graphic-E/BIOSPHERE/Bios-C-ProtistsProtozoa.htm
Protists
 Animal-like vs Plant or Fungus like..


Called Protozoans
Divided into 4 groups
• Sporozoans
– Parasites that feed on the cells and fluids of host.
Sporozoans
Plasmodium falciparum in blood, causes malaria
http://www.morning-earth.org/Graphic-E/BIOSPHERE/Bios-C-ProtistsProtozoa.htm
Sporozoans
Trypanosoma in blood
causes sleeping sickness
http://www.morning-earth.org/Graphic-E/BIOSPHERE/Bios-C-ProtistsProtozoa.htm
Protists
 Fungus-like vs Plant or Animal-like
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Use spores to reproduce
• Tiny cell able to grow into a new organism.
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All able to move at some point in their lives.
• Water Molds and Downy Mildew
Water Molds and Downy Mildew
http://www.ucmp.berkeley.edu/chromista/oomycota.html
Water Molds and Downy Mildew
http://www.omafra.gov.on.ca/english/crops/facts/downy-mildew-b.htm
Protists
 Fungus-like vs Plant or Animal-like

Use spores to reproduce
• Tiny cell able to grow into a new organism.

All able to move at some point in their lives.
• Slime molds.
Slime molds
http://io.uwinnipeg.ca/~simmons/16cm05/1116/16protis.htm
Slime molds
http://io.uwinnipeg.ca/~simmons/16cm05/1116/16protis.htm
Protists
 Plant-like vs Fungus-like or Animal-like
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Commonly called algae.
All are autotrophs.
Several Types
• Euglenoids
– Can be heterotrophic in no-light
Euglenoids
http://www.emc.maricopa.edu/faculty/farabee/BIOBK/euglena.gif
Euglenoids
http://silicasecchidisk.conncoll.edu/Pics/Other%20Algae/Other_jpegs/Phacus3.jpg
Euglenoids
http://protist.i.hosei.ac.jp/PDB/Images/Mastigophora/Euglena/hemichromata/hemichromata_3.jpg
Protists
 Plant-like vs Fungus-like or Animal-like
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Commonly called algae.
All are autotrophs.
Several Types
• Dinoflagellates
– unicellular algae covered in stiff plates
Dinoflagellates
http://www.astrographics.com/GalleryPrints/Display/GP2117.jpg
Dinoflagellates
http://cache.eb.com/eb/image?id=30670&rendTypeId=4
Protists
 Plant-like vs Fungus-like or Animal-like
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Commonly called algae.
All are autotrophs.
Several Types
• Diatoms
– unicellular algae with glass-like cell walls
Diatoms
http://www.digitalstar.net/microecologies/wp-content/uploads/2006/09/diatoms.jpg
Diatoms
http://www.rbgsyd.nsw.gov.au/__data/assets/image/47489/Diatoms1.gif
Protists
 Plant-like vs Fungus-like or Animal-like

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Commonly called algae.
All are autotrophs.
Several Types
• Green Algae
Green Algae
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/green.html
Green Algae
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/wimsmall/green.html
Protists
 Plant-like vs Fungus-like or Animal-like
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Commonly called algae.
All are autotrophs.
Several Types
• Red Algae
– Mostly Seaweeds
Red Algae
http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artmar99/red.html
Red Algae
http://www.ucmp.berkeley.edu/protista/rhodophyta.html
Protists
 Plant-like vs Fungus-like or Animal-like
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Commonly called algae.
All are autotrophs.
Several Types
• Brown Algae
– more seaweeds
Brown Algae
http://www.hawaii.edu/reefalgae/invasive_algae/phaeo/sargpolytankcu2_small.jpg