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Lecture

BIOL120 Lecture 2.docx

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Department
Biology
Course
BIOL 120
Professor
Rachel Cook
Semester
Summer

Description
BIOL120 Lecture 2 – May 9, 2013 - Heterotrophic cell digests a photosynthetic prokaryote to produce algae? - each endosymbiotic process adds another layer of membrane - Euglenoids: o 2 membranes  1 endosymbiotic event occurred o pellicle  pellicle bands, allows to change shape as it swims o mixotroph  photosynthesis AND ingest organic molecules - Dinoflagellates o Plates give its shape o 2 flagella  One flagella wraps around cell to spin it, the other remains perpendicular to move forward/backward? - Diatoms o Excellent fossils due to their frustules? - Yellow-greens o 2 flagella  one to move forward, and one to move backward - Golden-browns o Photosynthetic, but also ingest food by phagocytosis - Cryptomonads - Haptophytes o UV absorbing compounds  protects from UV rays - Brown Multicellular algae o Holdfast  Anchors cells o Although they look like plants, they lack
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