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Transcript
Materials Needed Structures and Functions in Living Systems graphic organizer-copy the notes that are highlighted in green throughout the ppt. The notes in blue will go on the back of your worksheet. See slide #15, draw, label & color a picture of an animal cell on the worksheet “Living Things Are Made of These”, last page, question #8 Pencil, colored pencils Cell Membrane (gatekeeper) Semi-permeable Controls what enters and leaves the cell Gas exchange (similar function to lungs in your body) http://library.thinkquest.org/06aug/01 942/plcells/thinkquest/cellmembraen.j pg Nucleus (Brain/Control Ctr.) Controls the activities of the cell Holds the genetic material (DNA) Contains genes (made of DNA) on 46 chromosomes. Thousands of strands of DNA can fit onto one chromosome. These have all the instructions for your body. http://www.cartage.org.lb/en/themes/Sciences/Zoology/ AnimalPhysiology/Anatomy/AnimalCellStructure/Nucleus/ cellnucleus.jpg Cytoplasm Fluid that fills cells Site of many cellular reactions Organelles – Units in cells that have different functions http://www.enchantedlearning.com Mitochondria (Powerhouse) Site of respiration, where glucose is broken down into cellular energy Active animal cells have more mitochondria than plant cells Vacuoles Store food, water or wastes VERY small in animal cells. VERY large in plant cells. Contains fluid. http://www.easthaven.k12.ct.us/dcmoore/Grade%206/Cell%20Websites/angelic a_files/vacuole.jpg Lysosomes (trash collector) Used to digest food or dissolve wastes (you don’t want it to burst) Very common in animal cells but rare in plant cells. http://publications.nigms.nih.gov/in sidethecell/images/ch1_lysosome.jp g Ribosomes Make proteins. Found in cytoplasm and Rough ER. Ribosomes are made up of two layers. http://www.emc.maricopa.edu/faculty/farabee /BIOBK/ribosome.gif Endoplasmic Reticulum “ER” Rough ER: Transports proteins (like a highway). Has ribosomes. Smooth ER: Collects and stores proteins. http://www.scienceaid.co.uk/biology/fundamentals/image s/er.jpg Golgi Complex (factory) Builds lysosomes Stores and packages proteins http://whittier.gcisa.net/highschool/cells01/Test.JPG Centrioles Helps the cell divide. They can’t be seen when the cell is not dividing. http://images.google.com/imgres?imgurl=http://micro.magnet.fsu.edu/cells/centrioles/images/centriolesfigure1.jpg&imgrefurl=http://micro.magnet.fsu.edu/cells/centrioles/centrioles.html& usg=__EWf9YxF4J676A4PHGOHMufKBn3k=&h=258&w=315&sz=36&hl=en&start=1&um=1&tbnid=qaKmgjBlupOE1M:&tbnh=96&tbnw=117&prev=/images%3Fq%3Dcentrioles%26um%3 D1%26hl%3Den%26rls%3Dcom.microsoft:en-US%26sa%3DN Nucleolus Produces ribosomes, which move out of the nucleus to the rough ER http://images.google.com/imgres?imgurl=http://www.lbl.gov/Science-Articles/Archive/assets/images/2006/Dec/11-Mon/nucleolus_diagram.jpg&imgrefurl=http://www.lbl.gov/ScienceArticles/Archive/LSD-cellarchitecture.html&usg=__FwhjW8lql5ihJ1GTZkRSGt5LeKk=&h=353&w=350&sz=140&hl=en&start=6&um=1&tbnid=bwkV9OPZ6_tz3M:&tbnh=121&tbnw=120&prev=/images%3Fq%3Dnucleolus %26um%3D1%26hl%3Den%26rls%3Dcom.microsoft:en-US%26sa%3DN http://www.cellsalive.com/cells/cell_model.htm Draw, label & color the animal cell above on the worksheet “Living Things Are Made Of These”, last page, question #8