DIVERSITY OF PROTIST
Euglena Amoeba Paramecium
Euglena Amoeba Paramecium
PROTIST
Protist are a diverse group of single and multi - celled eukaryotic, cells with a nucleus, microorganisms. They are made up of photoautotrophs, heterotrophs and mixotrophs. Cells which contain chloroplasts are called phototrophs due to the fact they contain chloroplasts which harness light energy. Heterotrophs absorb organic molecules and, or ingest larger food particles. Mixotrophs, a mix of the phototrophs and heterotrophs, are able to combine photosynthesis and heterotrophic nutrition for their surival. Protists are vital to nearly every ecosystem on the planet as they absorb large amounts of carbon dioxide and exchange it to oxygen which is released into the atmosphere.
PROTISTS DO NOT FALL IN THE PLANT, ANIMAL OR FUNGI CLASSIFICATION
Scientist believe that protist originated by a process called "The Endosymbiotic Origin of Mitochondria and Plastids".
The endosymbiotic origin of mitochondria and plastids states that mitochondria and plastids were originally small prokaryote cels living within other larger "host" cells. It is assumed that these prokaryotes gained entry into their host cells either by being undigested prey or by internal parasites.
Eventually the host cells and these prokaryote cells became interdependent on each other, and the host and endosymbionts became a single organism. The similarities in the inner membrane structures and their functions, and the fact they both have their own circular DNA, gives weight to the evidence of the endosymbiotic origin of Mitiochondria and Plastids.
Protist are a diverse group of single and multi - celled eukaryotic, cells with a nucleus, microorganisms. They are made up of photoautotrophs, heterotrophs and mixotrophs. Cells which contain chloroplasts are called phototrophs due to the fact they contain chloroplasts which harness light energy. Heterotrophs absorb organic molecules and, or ingest larger food particles. Mixotrophs, a mix of the phototrophs and heterotrophs, are able to combine photosynthesis and heterotrophic nutrition for their surival. Protists are vital to nearly every ecosystem on the planet as they absorb large amounts of carbon dioxide and exchange it to oxygen which is released into the atmosphere.
PROTISTS DO NOT FALL IN THE PLANT, ANIMAL OR FUNGI CLASSIFICATION
Scientist believe that protist originated by a process called "The Endosymbiotic Origin of Mitochondria and Plastids".
The endosymbiotic origin of mitochondria and plastids states that mitochondria and plastids were originally small prokaryote cels living within other larger "host" cells. It is assumed that these prokaryotes gained entry into their host cells either by being undigested prey or by internal parasites.
Eventually the host cells and these prokaryote cells became interdependent on each other, and the host and endosymbionts became a single organism. The similarities in the inner membrane structures and their functions, and the fact they both have their own circular DNA, gives weight to the evidence of the endosymbiotic origin of Mitiochondria and Plastids.
protists movement/characteristics habitat/nutrition
Reference
Adams, Gary , "Sketches of Protists" 2013
Global Journey, "Minuet", Retrieved from website April 22, 2013, http://www.global-journey.com/free/
Adams, Gary , "Sketches of Protists" 2013
Global Journey, "Minuet", Retrieved from website April 22, 2013, http://www.global-journey.com/free/