Protist Protist Temporal range: Neoproterozoic – Recent | | Scientific classification | Domain: | Eukarya | Excluded groups * Fungi * Plantae * Animalia Many others; classification varies | * Chromalveolata * Heterokontophyta * Haptophyta * Cryptophyta (cryptomonads) * Alveolata * Dinoflagellata * Apicomplexa * Ciliophora (ciliates) * Excavata * Euglenozoa * Percolozoa * Metamonada * Rhizaria * Radiolaria
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Chapter 22: Protists 22-1: Characteristics of Protists Protists Are a Varied and Ancient Group of Organisms Protists are the most diverse of all organisms - most are unicellular - microscopic - few are complex and multicellular Characteristics - eukaryotes - some photosynthesis - some ingest their food - some absorb their food - some have flagella or cilia o used for locomotion or getting food - found
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PROTIST WEBQUEST Part A: Click on the “Introduction to Protist” link and answer questions 16. Introduction to Protists Go to the website: http://www.funsci.com/fun3_en/protists/entrance.htm 1) What is a protist? [ Protists are very small‚ singlecelled eukaryotes. ] 2) What types of environments do they typically inhabit? [ ] 3) Are bacteria and protists the same thing? Why or why not? [ ] 4) What is a prokaryote?[ ] 5) What is a eukaryote?[ ] 6) What has a more complicated structure: bacteria or protists
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Funguslike Protists * heterotrophs‚ decomposers * called slime molds and water molds Dog Vomit Slime Mold Mushroom Plantlike Protists: Red‚ Brown‚ Green Algae Green Algae: Phylum Chlorophyta Unicellular green algae‚ Colonial (volvox)‚ Multicellular (ulva‚ sea lettuce) Spirogyra live in water‚ multicellular named after a spiral shaped chloroplast autotrophic Diatoms (Plantlike Protist) produce thin cell walls of silicon‚ main component
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Observing Protists through Hay Infusion Preparation Abstract: Protists are known to be the very first eukaryotic organisms on earth. The Kingdom Protista was first classified by Haeckel in the year 1866. Now‚ there are many known species of protists. After learning about protists in class‚ the group decided to observe the different species of protists found in pond water. The group prepared a preparation to be able to culture the protists until it was time to view them. After a few days‚ the
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plant-like protists‚ because they have chloroplasts. 4. Animal-like protest can breathe‚ and eat. 5. The euglena uses its whip-like "tail" to move. It flicks the tail and that propels it around. 6. The paramecium uses its cilia to move around randomly. 7. The amoeba uses its pseudo pod (false foot) to move around. 8. I do not know if the protists I saw were free living or parasitic. 9. The white blood cells in our body are like an amoeba. 10. 11. Drinking water is kept free of protists by filters
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in order to identify characteristics associated with cell structure and movement of these one-celled organisms. We found that Protists exhibit certain characteristics that allow them to be categorized into different groups‚ mainly determined by their locomotion patterns. Despite differences in locomotion and the varying plant-like and animal-like organelles‚ all protists share key characteristics and functions that allow them to feed‚ grow‚ and reproduce--processes essential for survival and common
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Use diverse modes of nutrition Ingest food Absorb nutrients from surroundings Photosynthesis Protists that ingest food are typically predators Use extensions of cell membrane called psuedopods to surround and engulf prey item Diverse Modes of Nutrition Protists that absorb nutrients directly from the surrounding environment can be Free-living types in the soil that decompose organic dead matter
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sometimes fresh water they could be found also. But both are a type of phytoplankton And they both play important roles in marine food webbing They also help remove carbon dioxide from air Dinoflagellates are unicellular protists; They’re planktonic. 90% of all dinoflagellates are marine plankton. They are very small as well. many of them are microscopic‚ the largest of them all may be as large as 2 mm in diameter! At it’s largest size. Dinoflagellates sby 2 things
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B1: Protists Worksheet Unit 5 Lessons 1 to 3 1. Use a Venn Diagram to compare and contrast a prokaryotic cell (Moneran) with a eukaryotic cell (Protista).(5 marks) 2. Use a 4-Point concept map to define and describe the characteristics of the Kingdom Protista. (10 marks) 3. Use the table below to relate the structural adaptations of 3 different Protists to their
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