protists - beavercreek high school€¦ · plant/fungus-like protists –algae –diatoms...
TRANSCRIPT
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Protists
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Sub divisions
There are two main sub-classifications of Protista:
-Protozoans (Animal-like)
-Algae (Plant-like)
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Euglena
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Paramecium
Use your book to sketch and label a paramecium.
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Different Types of Protists
Animal-like Protists
– Ciliaphores (cilia)
– Sarcomastigophores (flagella)
– Protozoas (pseudopodia)-amoebas
– Apicomplexas (no movement)-spores
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Protist Locomotion
Ciliated- short cellular appendages that are used strictly for protozoan locomotion
Flagellated- a cellular appendage specialized for movement
Pseudopodia- cellular extensions of protozoan organisms that are used for feeding and movement
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Protist Locomotion
Cilia Flagella Pseudopodia
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Different Types of Protists
Plant/Fungus-like Protists
– Algae
– Diatoms
– Dinoflagellates
– Euglenoids
– Slime & Water Molds
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Algae
Red Marine Algae
Golden Algae
Green Algae
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Algae
Brown Algae: Kelp Forests
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Diatoms
Unicellular protists
Have cell walls made from silicone dioxide
Abundant in marine environments
Important food source
Used highly by humans
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Dinoflagellates
Photosynthetic autotrophs
Some are bioluminescent
Some produce toxins and a red pigment
When populations of dinoflagellates explode they cause red tide events
Red Tide
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Slime & Water Molds
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VIP: Very Important Protists
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Malaria
Malaria is an infectious disease caused by Plasmodium sp., a parasitic protists transmitted from mosquito to humans
Malaria is a widespread disease affecting countries in the southern hemisphere of the world
Symptoms of this disease range from severe chills to extreme fatigue
Approx. 3 million people die from Malaria each year
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Sleeping Sickness
Caused by Tsetse flies in Africa
The flies bite and transmit the Trypanosoma sp. of disease-causing protists
These protists can cause anything from a severe headache to comas
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Giardiasis
Giardiasis is an illness caused by the parasitic protists Giardia lamblia
This protists is found water sources contaminated by fecal matter
Symptoms of giardiasis are severe diarrhea and intestinal cramps
Hundreds of thousands cases of giardiasis is reported a year
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Giardiasis and Primates
Tim Nikko and
Dudley
Abby
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Hypereutrophication
Ovegrowth of algal blooms caused by runoff of organic material
Causes an imbalance in aquatic ecosystems
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Hypereutrofication
The Gulf of Mexico Dead Zone
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Protist Videos
Why its important to study microorganisms http://player.discoveryeducation.com/index.cfm?guidAssetId=F61AC8F3-BBDB-
4886-888C-234742AB31CD&blnFromSearch=1&productcode=US
Kingdom Protista: The Protists http://player.discoveryeducation.com/index.cfm?guidAssetId=3D84751E-23C5-
4538-9090-2725EE7B64D6&blnFromSearch=1&productcode=US
Organisms found in pond water: Multicellular Organisms
http://player.discoveryeducation.com/index.cfm?guidAssetId=E85B1EF0-0FBE-46ED-840D-C636D494884E&blnFromSearch=1&productcode=US