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Algaelike Protist
Savanna, Brandon, and Hunter
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Plant like protists:
• Energy by photosynthesis = autotrophs• All contain chlorophyll a but vary with
accessory pigments and other chlorophylls.
Euglenoidsdinoflagellates
diatoms Brown algaerhodophyta
chlorophyta
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algaelike
Funguslike
Animal-like
photosynthesis
These organisms are all eukaryotes (they have a true nucleus). They all need some kind of a water-based environment--which can be fresh or marine water, snow, damp soil, polar bear hairs--in which to live.
All are aerobic and have mitochondria to do cellular respiration, and some have
chloroplasts and can do photosynthesis.
heterotrophs
Protists
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Rhodophyta• Phycobilins = red accessory pigments • Multicellular• Gametes don’t have flagella• Tropical zones deep in the ocean• Used in food and good sources of iodine
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Chlorophyta
“green algae” – contain chlorophyll b and cellulose wallsStore carbohydrates as starch.Evolutionary ancestors to plantsMany different (moist) environments – polar bear hairVary in sexuality: isogamous, anisogamous, oogamousTrends toward multicelluarity succession from unicellular organisms to larger colonies (volvox = hundreds)
Papa Joe!
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Euglenoids
• One to three flagella at their apical end. • Pellicles • They can become heterotrophic in the
absence of light. • They also have an eyespot to detect light.
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Dinofalgellates
• Have two flagella• Can be mixotrophic• Some of them are bioluminescent • Red tide
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Dinofalgellates Red Tide
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Brown Algae • AKA: Phaeophyta (Most Diverse)
• Multicellular Organisms– Sea weeds(ex. Sea Palms)
• 1500 – 2000 Species• Chloroplast (4 membranes)– Fucoxanthin Pigment
• Forms deferent tissues– Flagellum in Gametes and Zoospores – Penumatocysts (Gas Filed
“Floats”)
• Kingdom: Chromista• Asexual and Sexual Reproduction• Size: 1cm.(Thread like) – 160M.
(Kelp)• Alternation of Generations – Haploid Diploid
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Diatoms • AKA: Bacillariophyta • Single Celled Organism • Glass like wall- Hydrated Silica– 2 Parts Overlaps (capsule)– Strengthened (pores/Lace
• Asexual(Usually) and Sexual • About 100,000 Species • Stores energy in the form of:– Laminarin (Glucose Polymer)– Oil
• Size: Microscopic • Thought to help environment – CO2 is not released in atmosphere– Carbon is “pumped” to the ocean floor
This picture shows the side view (top left) and top view (bottom right) of a Navicula lanceolata.
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Works Cited Page
• http://biology.clc.uc.edu/courses/bio106/protista.htm
• http://www.google.com • http://www.britannica.com/EBchecked/topic/
81647/brown-algae• http://www.ucmp.berkeley.edu/chromista/ph
aeophyta.html• http://bio1903.nicerweb.com/Locked/media/
ch28/seaweed.html• http://people.westminstercollege.edu/faculty
/tharrison/emigration/diatoms.htm• http://www.ucl.ac.uk/GeolSci/micropal/diato
m.html