Post on 01-Jan-2016
What have we studied so far?What have we studied so far?
Bacteria Archaea Eukarya
Eubacteria
Archaebacteria Protista Fungi Plantae Animalia
Domains & Kingdoms
Kingdom ProtistaKingdom Protista......... Most are single ... Most are single
celled, and have a celled, and have a nucleus (eukaryotic). nucleus (eukaryotic). Many consumers, but Many consumers, but a few are producers.a few are producers.
Guiding QuestionGuiding Question
Health and SocialHealth and Social
Area of InteractionArea of Interaction
How is the world we live in How is the world we live in impacted by things that you impacted by things that you can’t see? can’t see?
Groups of ProtistsGroups of Protists Protists are Grouped by Protists are Grouped by
what they act like. They what they act like. They can be can be – Animal Like
– Plant Like
– Fungus Like
Animal-like Protists(protozoans) Animal-like Protists(protozoans) are classified by how they move:are classified by how they move:
ZooflagellatesZooflagellates-- move using a whip-move using a whip-like tail called alike tail called aflagellum.flagellum.
CiliatesCiliates- Move by little hairs - Move by little hairs called called cilia.cilia.
SarcodinesSarcodines-- Move by oozing Move by oozing and flowing false feet called and flowing false feet called pseudopodia.pseudopodia.
Amoeba –Amoeba –performing performing phagocytosisphagocytosis(engulfing food)(engulfing food)
SporozoansSporozoans- - do not move but do not move but instead are instead are parasitesparasites and and move via their host.move via their host.
Protozoan DiseasesProtozoan DiseasesMalariaMalaria
– Caused by sporozoan. Severe flu-like symptoms to coma and death,
– carried by the mosquito
African sleeping sicknessAfrican sleeping sickness– Caused by flagellate. Carried by
tsetse fly. Headaches, seizures, death if untreated.
Amoebic dysenteryAmoebic dysentery– Caused by sarcodine. Fever,
stomach cramping. dehydration
Plantlike protists (Algae)Plantlike protists (Algae)
Unicellular algae and Unicellular algae and multicellular algaemulticellular algae
AutotrophsAutotrophs7 phyla or groups7 phyla or groups
EuglenophytaEuglenophytaTwo flagella, no cell wall,Two flagella, no cell wall, chloroplastschloroplastsEyespot for sensing lightEyespot for sensing lightEx: euglenaEx: euglena
Euglenophytes!
ChrysophytesChrysophytesGold colored chloroplastsGold colored chloroplastsStore food in form of oil, Store food in form of oil,
not starchnot starch
ChrysophytesChrysophytes
BacillariophytaBacillariophytaDiatomsDiatoms
–Thin cell walls rich in silicon
BacillariophytesBacillariophytes
PyrrophytaPyrrophytaDinoflagellatesDinoflagellates
–Two flagella
–Bioluminescence (They glow!)
–Red Tide: seasonal bloom of Karenia brevis. Toxic to fish.
PyrrophytesPyrrophytes
Multicellular plant-likeMulticellular plant-like
Classified by photosynthetic Classified by photosynthetic pigments (different pigments (different chlorophylls)chlorophylls)
Look like plantsLook like plantsProduce half of the world’s Produce half of the world’s
oxygen through oxygen through photosynthesisphotosynthesis
Red algaeRed algaeLive at great ocean depths Live at great ocean depths due due
to chlorophyll a and to chlorophyll a and phycobilins.phycobilins.
Help in the formation of Help in the formation of coral reefs coral reefs
Red algaeRed algae
Brown algaeBrown algaeChlorophyll Chlorophyll a and ca and c Common seaweed, kelpCommon seaweed, kelpStipe-stem, blades- leaf, Stipe-stem, blades- leaf,
bladders-floatationbladders-floatation
Brown algaeBrown algae
Giant Kelp Forests
Green algaeGreen algaeChlorophyllChlorophyll a and b a and bFresh and salt waterFresh and salt waterUnicellular, colonial, or Unicellular, colonial, or
multicellularmulticellular
Green algaeGreen algae
Human Uses of AlgaeHuman Uses of AlgaeFood: Food: sushi, ice cream, sushi, ice cream,
salad dressing, pudding, salad dressing, pudding, candy bars, syrup, egg nogcandy bars, syrup, egg nog
Medications, Medications, CosmeticsCosmeticsIndustrial uses: plastics, Industrial uses: plastics,
waxes, paints, lubricantswaxes, paints, lubricants
Algae & the Global EnvironmentAlgae & the Global EnvironmentPhytoplankton(algae) are the Phytoplankton(algae) are the
basis for most ocean food chainsbasis for most ocean food chainsAlgae produce ½ of the world’s Algae produce ½ of the world’s
oxygen.oxygen.
Deep ThoughtsDeep Thoughts
1.1. What would fish eat What would fish eat without protists?without protists?
2.2. How would the global How would the global environment change environment change without protists?without protists?
Fungus-like ProtistsFungus-like Protists Slime molds and water Slime molds and water
moldsmolds