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Introduction
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Cells By Mr. Lin Image Courtesy of http://www.cnas.missouristate.edu/labimages/Biology/Bio122/images/Week%208%20Images/Liver%20cells.JPG
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What Are Cells?
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What are cells? Cells are the “building blocks” to living things. –Each cell has a job in an animal or plant’s body in order to keep it functioning properly. Organelles: –Every cell is made up of smaller parts that help keep the cell healthy. These are called organelles.
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Types of Cells Animal cells: –Cells that make up an animal. Plant cells: –Cells that make up a plant. Plant and Animal cells are similar. However there are a few key differences, which we will discuss later on.
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Animal Cells Well, let me use a... Simile. “Animal cells are like cities.” Image Courtesy of http://www.norfolkdevelopment.com/demographic-facts/images/RedSkySkyline.jpg
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Animal Cells have... City Limits: Boundaries Image Courtesy of http://www.system-safety.org/~issc_2006/abq-city-limits.gif
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Animal Cells also have... A City Government: They control the environment Image Courtesy of http://www.houstontx.gov/abouthouston/images/cityhall/cityhall-large.gif
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Animal Cells have... A Constitution: Plan on how to run the city Image Courtesy of http://www.archives.gov/education/lessons/constitution-day/images/constitution- 01.gif
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Animal Cells have... Power Plants: To Provide Energy Image Courtesy of http://www.on.ec.gc.ca/wildlife/acidrain/images/ar-stacks.jpg
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Animal Cells have... Warehouses: For storing food and waste Image Courtesy of http://www.treepad.com/photo_album/amsterdam/images/32.jpg and http://images.trucks.com/images/47a.jpg
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Animal Cells have... Space To Move Around In : Roads, sidewalks, lawns, playgrounds, parks Image Courtesy of http://www.mccullagh.org/db9/10d-13/midtown-manhattan-city-street.jpg
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Mitochondria: The Power Plant releases energy from food. Cell Membrane: Separates surrounding with what’s outside. Nucleus: The Control Center for all the cell’s activities. Chromosomes: Thread-like structures that contain information about the animal’s characteristics. Holds DNA. Cytoplasm: The jellylike substance that fills the cell. Allows other organelles to move around Vacuoles: Stores food and waste
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Cell Membrane
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Cytoplasm
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The Nucleus
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Mitochondria
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Plant Cells Well, let me use a... Simile. “Plant cells are like fortified cities.” Image courtesy of http://www.softxs.ch/alan/travel/oman/forts/pb120310.jpg
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Plant Cells have... Walls : A Stiff protection against intruders Image Courtesy of http://www.panoramio.com/photos/medium/4674/middle-head-forts- sydney.jpg
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Plant Cells ALSO have... A Food-maker from the Sun : “Magical” devices that turn the sun’s energy into food and sugar. Image Courtesy of http://www.sunflowerproject.org/sunflower-field-fs.jpg
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Plant Cells ALSO have... City Limits: Boundaries Image Courtesy of http://www.system-safety.org/~issc_2006/abq-city-limits.gif
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Plant Cells ALSO have... A City Government: They control the environment Image Courtesy of http://www.houstontx.gov/abouthouston/images/cityhall/cityhall-large.gif
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Plant Cells ALSO have... A Constitution: Plan on how to run the city Image Courtesy of http://www.archives.gov/education/lessons/constitution-day/images/constitution- 01.gif
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Plant Cells ALSO have... Power Plants: To Provide Energy Image Courtesy of http://www.on.ec.gc.ca/wildlife/acidrain/images/ar-stacks.jpg
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Plant Cells ALSO have... Warehouses: For storing food and waste Image Courtesy of http://www.treepad.com/photo_album/amsterdam/images/32.jpg and http://images.trucks.com/images/47a.jpg
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Plant Cells ALSO have... Space To Move Around In : Roads, sidewalks, lawns, playgrounds, parks Image Courtesy of http://www.mccullagh.org/db9/10d-13/midtown-manhattan-city-street.jpg
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Mitochondria: The Power Plant releases energy from food. Cell Membrane: Separates surrounding with what’s outside. Chromosomes: Thread-like structures that contain information about the plant’s characteristics. Holds DNA. Cytoplasm: The jellylike substance that fills the cell. Allows other organelles to move around Vacuoles: Stores food and waste Chloroplast: This organelle converts the sun’s energy into sugar through photosynthesis. Nucleus: The Control Center for all the cell’s activities. Cell Wall: The stiff protection on the outside
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IMPORTANT FACT! Animal cells have MANY small vacuoles. Plant cells have one BIG vacuole
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Cell Wall and Vacuoles
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Chloroplast (and Photosynthesis)
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Review The conversion of the sun’s energy into sugar (food) is called... –Photosynthesis ? + ? + ? = sugar –Sunlight + Carbon Dioxide + Water = sugar In what organelle does photosynthesis occur? –Chloroplast
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Mitochondria: The Power Plant releases energy from food. Cell Membrane: Separates surrounding with what’s outside. Chromosomes: Thread-like structures that contain information about the plant’s characteristics. Holds DNA. Cytoplasm: The jellylike substance that fills the cell. Allows other organelles to move around Vacuoles: Stores food and waste Chloroplast: This organelle converts the sun’s energy into sugar through photosynthesis. Nucleus: The Control Center for all the cell’s activities. Cell Wall: The stiff protection on the outside
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