The Kingdom of Protista

Scott MayerMarch 28, 2010Biology Period 6

What is a Protist?• Protist-Eukaryotes

that are not members of the kingdoms plantae, animalia, or fungi.

• A protist is any organism that is not a plant, animal, or prokaryote.

• Most protists are unicellular, but few have hundreds or even thousands of cells.

Evolution of Protists

• Protists were the first eukaryotic organisms on earth which first started appearing 1.5 billion years ago.

• Some organelles in eukaryotic cells were once symbiotic prokaryotes that lived inside other cells.

Types of Protists• Animal-like:

assembles cytoplasm to help wrap around prey

• Fungus-like: contains hyphae to look like fungi, also acts as decomposers by releasing enzymes.

• Plant-like: They can make their own food (autotrophs)

Protist Classification

• Biologists have called protists the most diverse organism on the planet.

• Protists either obtain food from the sun (photosynthesis), or from external digestion (decomposers).

Protist Bibliography• "Image Result for

http://rst.gsfc.nasa.gov/Sect20/paramecium_stained.jpg." Google. 31 Mar. 2010 <http://www.google.com/imgres?imgurl=http://rst.gsfc.nasa.gov/Sect20/paramecium_stained.jpg&imgrefurl=http://rst.gsfc.nasa.gov/Sect20/A12c.html&h=236&w=361&sz=34&tbnid=tZE8lZCeHcIFWM:&tbnh=79&tbnw=121&prev=/images%3Fq%3Dprotists&hl=en&usg=__-ZMpEEjSBX-f39UvliLFm9uszHo=&ei=UqqzS4iZFYe6NeT9oaoJ&sa=X&oi=image_result&resnum=15&ct

• "Image Result for http://www.biology4kids.com/extras/dtop_micro/2261_580.jpg." Google. 31 Mar. 2010 <http://www.google.com/imgres?imgurl=http://www.biology4kids.com/extras/dtop_micro/2261_580.jpg&imgrefurl=http://www.biology4kids.com/extras/dtop_micro/2261.html&h=435&w=580&sz=24&tbnid=dDdiKKg64-1cyM:&tbnh=101&tbnw=134&prev=/images%3Fq%3Dprotists&hl=en&usg=__9L2U4442oPbnioP7wiLFUHVeIv4=&ei=UqqzS4iZFYe6NeT9oaoJ&sa=X&oi=image_result&resnum=16&ct=image&ved=0CD4Q9QEwDw>.

• "Kingdom Protista." The Biology Corner. 31 Mar. 2010 <http://www.biologycorner.com/bio1/protista.html>.

•  "Protists." Clinton Community College. 31 Mar. 2010 <http://faculty.clintoncc.suny.edu/faculty/michael.gregory/files/bio%20102/bio%20102%20lectures/protists/protists.htm>.