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Published byArthur Johnston Modified over 8 years ago
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What is the Difference Between Prokaryotic and Eukaryotic? 1.Prokaryotic cells have no nucleus; Eukaryotic cells do 2. Prokaryotic cells lack membrane-bound organelles such as a mitochondria and chloroplast; Eukaryotic cell have them.
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Protist Habitat: Freshwater (ponds, rivers, streams, etc)
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Protist Habitat: Marine (Ocean)
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Protist Habitat: Soil
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Protist Habitat: In other organisms
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Protozoa: Animal-like Protists AKA: Zooplankton
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Zooplankton: Paramecium
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Paramecium Structure Paramecium are unicellular
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Paramecium Information* Move using Cilia – tiny hairs covering the outermost layer Cilia Watch Video
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Paramecium Information ALL aquatic protists contain a contractile vacuole Acts like a water pump which regulates the water pressure inside organism
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* Watch Video: Click picture
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Method of Feeding* Heterotroph Cilia helps guide food into the gullet; a food vacuole is formed; digestive enzymes break down food Watch Video: Click picture
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- One parent -Doesn’t exchange DNA - Produces identical offspring Reproduction: Binary Fission (Asexual)*
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Reproduction: Conjugation(Se xual)* Two parents Exchange DNA Produce different offspring
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Zooplankton: Amoeba
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Amoeba Structure Amoeba are unicellular
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Amoeba Information* Move using Pseudopod – False foot Literally moves like a blob Watch Video: Click picture
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Method of Feeding* Heterotroph Pseudopod surrounds food; process called Phagocytosis Eventually engulfs it Fast forward to 1:15 Watch Video: Click picture
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- One parent -Doesn’t exchange DNA - Produces identical offspring Reproduction: Binary Fission (Asexual)
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Protozoa: Plant-like Protists AKA: Phytoplankton
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Phytoplankton: Euglena
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Euglena Structure Euglena are unicellular
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Euglena Information Move using a Flagella; a long whip-like tail Different species of euglena move in different ways
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* They can spin like a tornado Watch Video: Click picture
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* They can move like a worm Watch Video: Click picture
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Method of Feeding Autotroph and Heterotroph Can undergo photosynthesis; has an eyespot to act as a sunlight sensor Also can consume food if necessary
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-One parent -Doesn’t exchange DNA -Produces identical offspring Reproduction: Binary Fission (Asexual)
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Phytoplankton: Dinoflagellates Dinoflagellates are Unicellular
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Some have the ability to bioluminescence (glow) The ability to glow is similar to a burglar alarm or defense system
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Video #1: Splashing WaterVideo #1: Splashing Water (Turn Volume Down) Video Clip #2: Surfing Watch Video
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Phytoplankton: Green Algae Unicelluar; Multicellular; Colonial (many individual organisms living together in a outer membrane)
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Most diverse group of protists; can be found everywhere
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Even on the backs of some animals
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Phytoplankton: Brown Algae Not a true plant because it lacks TRUE roots, stems, and leaves Frond≠Leaf Stipe≠Stem Holdfast≠Roots
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Seaweed is an example of Brown Algae
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Kelp is also an example of Brown Algae
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Brown Algae is Edible
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Life in a Drop of Water Lab
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Proper Microscope Techniques 1. Make sure that stage is at the lowest position.
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Proper Microscope Techniques 2. Make sure that lowest objective is set
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Proper Microscope Techniques 3. Place slide securely on the stage
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Proper Microscope Techniques 4. While viewing through eyepiece, move stage up
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Proper Microscope Techniques 5. Once you see something, use fine focus
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Proper Microscope Techniques 6. Never move stage again; just objectives and fine focus.
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