PROTISTS
PROTISTS COMMON EXAMPLES: EUKARYOTIC VERY DIVERSE GROUP Amoeba, paramecium, euglena, volvox, plasmodium EUKARYOTIC Have a nuclear membrane VERY DIVERSE GROUP most are unicellular, microscopic, aerobic Some are autotrophic, heterotrophic, sexual, asexual
PROTISTS DOMAIN EUKARYOTA KINGDOM PROTISTA Any eukaryote that is not classified as a fungus, plant, or animal is a PROTIST
PROTISTS ANIMAL-LIKE PROTISTS = PROTOZOA PLANT-LIKE PROTISTS = ALGAE Classified by method of movement PLANT-LIKE PROTISTS = ALGAE Classified by pigment color FUNGUS-LIKE PROTISTS = MOLDS Classified by body form
PROTISTS PROTOZOA Heterotrophic Unicellular 4 groups
PROTISTS SARCODINA Aquatic Move by extending lobes of their cytoplasm called pseudopods (false feet) Example: Amoeba proteus
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PROTISTS CILIOPHORA Cilia for locomotion Larger than other protists Example: Paramecium
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PROTISTS SPOROZOA Members cannot move All are endoparasites Example: Plasmodium – causes malaria
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PROTISTS PLANT-LIKE PROTISTS Most perform photosynthesis Contain chlorophyll in chloroplast and usually other pigments Divided into groups by pigment color Euglenophyta Green algae Red/brown/gold algae Dinoflagellages (clear)
PROTIST EUGLENOPHYTA Stigma (eyespot) - light sensitive Movement toward light using flagella; flagella pulls cell Example: Euglena; Volvox
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PROTISTS GREEN ALGAE Contain chlorophyll b is their main type (which is very similar to land plants) Many live in symbiotic relationships Lichen – organism composed of an algae and a fungi living together as one Example: Spirogyra
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PROTISTS Red/brown/gold algae Brown algae used as a thickening agent in toothpaste, pudding, ice cream; ex. Giant kelp
PROTISTS Gold algae is especially important in lakes, not true autotrophs because nearly all become heterotrophic in the absence of adequate light; ex. Diatoms
PROTISTS Dinoflagellates When agitated, undergo reaction that produces light bioluminescent Cause red tide
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PROTISTS FUNGUS-LIKE PROTISTS (MOLDS) Called “molds” because they are decomposers
PROTISTS IMPORTANCE OF PROTISTS ECOLOGICAL ROLES Provide an essential food base in aquatic food chains Carry out more than 30-40% of Earth’s photosynthesis Protozoans help keep the number of bacteria in check
Give Me A Hand Assignment Trace your non-writing hand in the middle of the paper Write “Protists” in the palm Use your notes to find examples to put on each finger and one non-example for the thumb. Each example needs a picture! USE AT LEAST 4 COLORS!! Wrtite a 4-6 sentence paragraph explaining how your examples relate to the topic.