Protists
General Characteristics <ul><li>Most are unicellular, a few multicellular </li></ul><ul><li>Eukaryotic (have a nucleus) </...
Importance <ul><li>They are at the bottom of the food chain = major food source – They are a first level consumer </li></u...
<ul><li>1. Sarcodines (Sarcodina):   </li></ul><ul><li>Amoebas </li></ul><ul><li>Move and engulf their prey by producing l...
<ul><li>1. Sarcodines </li></ul><ul><li>Heterotrophic </li></ul><ul><li>Example: Amoeba, Foraminifera </li></ul>
1. Sarcodines <ul><li>Entamoeba hystolitica –  feeds on the lining of the human gut, causing amoebic dysentary. </li></ul>...
2. Flagellates (Zoomastigina) <ul><li>Have one or more flagellae that whip from side to side. </li></ul><ul><li>Many flage...
3. Ciliates (Ciliophora) <ul><li>Paramecium is the most common ciliate. </li></ul><ul><li>It is covered by hundreds of cil...
4. Sporozoans (Sporozoa) <ul><li>Sporozoans are parasites. </li></ul><ul><li>The most devastating human parasite is the sp...
Tsetse Fly <ul><li>In Zimbabwe there is an illness called the African Sleeping Sickness. </li></ul><ul><li>The parasite,  ...
<ul><li>Plantlike Protists </li></ul>
<ul><li>2.  Plantlike Protists </li></ul><ul><li>-Contain chlorophyll (carry out photosynthesis) </li></ul><ul><li>-Exampl...
Fungilike Protists
Fungilike Protists <ul><li>Also called  slime molds </li></ul><ul><li>Like cool, shady moist places </li></ul><ul><li>Can ...
Fungilike Protists <ul><li>There are also  water molds </li></ul><ul><li>Like cool, shady moist places </li></ul><ul><li>C...
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05 protists

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05 protists

  1. 1. Protists
  2. 2. General Characteristics <ul><li>Most are unicellular, a few multicellular </li></ul><ul><li>Eukaryotic (have a nucleus) </li></ul><ul><li>Mainly asexual reproduction </li></ul><ul><li>Like moist surroundings </li></ul>
  3. 3. Importance <ul><li>They are at the bottom of the food chain = major food source – They are a first level consumer </li></ul><ul><li>Also involved in symbiotic relationships </li></ul>
  4. 4. <ul><li>1. Sarcodines (Sarcodina): </li></ul><ul><li>Amoebas </li></ul><ul><li>Move and engulf their prey by producing limb-like extensions of their cytoplasm called pseudopodia. </li></ul><ul><li>Foraminifera </li></ul><ul><li>Abundant </li></ul><ul><li>The ocean floor contains layers of sediment made up of foraminifera. </li></ul><ul><li>The white cliffs of Dover in England are made up of sedimentary limestone rock composed largely of foraminiferan shells. </li></ul><ul><li>Extend sticky pseudopodia through tiny holes in their shells to capture food. </li></ul>Animal-like protists (Protozoa) Divided into four phyla based on their locomotion
  5. 5. <ul><li>1. Sarcodines </li></ul><ul><li>Heterotrophic </li></ul><ul><li>Example: Amoeba, Foraminifera </li></ul>
  6. 6. 1. Sarcodines <ul><li>Entamoeba hystolitica – feeds on the lining of the human gut, causing amoebic dysentary. </li></ul><ul><li>Other amoeba live in our guts that do not cause any significant problems. </li></ul><ul><li>Intestinal amoeba can be spread by drinking contaminated water, or eating food that has been contaminated. </li></ul>
  7. 7. 2. Flagellates (Zoomastigina) <ul><li>Have one or more flagellae that whip from side to side. </li></ul><ul><li>Many flagellates live in animals digestive tract to help digest plants. </li></ul><ul><li>Termites are unable to digest wood, flagellates live in the termite gut and convert cellulose to carbohydrates with the use of enzymes. </li></ul>
  8. 8. 3. Ciliates (Ciliophora) <ul><li>Paramecium is the most common ciliate. </li></ul><ul><li>It is covered by hundreds of cilia. The cilia help push the food into the gullet of the paramecium, which leads to a food gullet. </li></ul>
  9. 9. 4. Sporozoans (Sporozoa) <ul><li>Sporozoans are parasites. </li></ul><ul><li>The most devastating human parasite is the sporozoan Plasmodium vivax. </li></ul><ul><li>http:// www.youtube.com/watch?v =IVbq2yQH52g 4:10 </li></ul>
  10. 10. Tsetse Fly <ul><li>In Zimbabwe there is an illness called the African Sleeping Sickness. </li></ul><ul><li>The parasite, Trypanosoma spends some of its life in the salivary glands of tsetse flies and they are transmitted to humans by the bite of that fly. </li></ul><ul><li>Once bitten the person becomes dizzy, falls into a coma and dies. </li></ul><ul><li>http://www.youtube.com/watch?v=4aVUrGO97Zg </li></ul>
  11. 11. <ul><li>Plantlike Protists </li></ul>
  12. 12. <ul><li>2. Plantlike Protists </li></ul><ul><li>-Contain chlorophyll (carry out photosynthesis) </li></ul><ul><li>-Example: Algae, diatoms, dinoflagellates </li></ul>
  13. 13. Fungilike Protists
  14. 14. Fungilike Protists <ul><li>Also called slime molds </li></ul><ul><li>Like cool, shady moist places </li></ul><ul><li>Can resemble protozoans or fungi </li></ul>Peanut butter – dog vomit mold Cherry cobbler mold Fuligo septica .
  15. 15. Fungilike Protists <ul><li>There are also water molds </li></ul><ul><li>Like cool, shady moist places </li></ul><ul><li>Caused the Irish Great Potato Famine </li></ul>

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