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  • 1. Cell Guys, Cell Size, and Cell Specialize Chap 7-1 & 7-4 http://www.parlament-berlin.de/Galeriecopy.nsf/0/8ABC720262898739C1256A480037F869?OpenDocumen http://www.ncu.edu.tw/~ls/graph/faculty_pictures/whole_time/SLC/SLC_lab-1.jpg t
  • 2. Microscope image: http://www.answers.com/topic/microscope Cork image: http://www.cortex.de/img_kork/cork_cells_big.jpg Hooke image: http://www.metaweb.com/wiki/upload/5/5c/Hookeyoungmtwb.jpg 1665- ______________________ used a microscope to examine a thin slice of cork and saw “little boxes” He called them “CELLS” because they looked like the small rooms that monks lived in called Cells Robert Hooke
  • 3. Microscope/Leeuwenhoek image: http://www.answers.com/topic/microscope Animation from: http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm 1673- ___________________________________ a Dutch microscope maker was the first to see LIVING ORGANISMS. Anton van Leeuwenhoek
  • 4. Plant image: http://www.epa.gov/maia/images/classification.gif Schleiden image: http://web.visionlearning.com/events/Schleiden_Apr5_2005.htm 1838- German botanist __________________________concluded that ALL PLANTS are made of cells Matthias Schleiden
  • 5.
    • Schwann image: http://home.tiscalinet.ch/biografien/biografien/schwann.htm
    • Animals image: http://animaldiversity.ummz.umich.edu/index.htm
    1839- German zoologist _________________________concluded that ALL ANIMALS ARE MADE OF CELLS Theodor Schwann
  • 6. Virchow: http://www.parlament-berlin.de/Galeriecopy.nsf/0/8ABC720262898739C1256A480037F869?OpenDocument Mitosis: http://biology.dbs.umt.edu/biol101/labs/lab_6_images/sect01and06/Rebecca,%20tanner,%20and%20liam%20mitosis%20root%20tip.jpg 1855- German medical doctor _____________________ saw dividing cells in the microscope and reasoned that cells come from other cells Rudolph Virchow
  • 7. CELL THEORY
    • 1. All living things are made of ____________.
    2. Cells are the basic unit of structure & function in an organism. (cell = basic unit of _____________) 3. Cells come only from the reproduction of ____________ cells Cell image: http://waynesword.palomar.edu/lmexer1a.htm CELLS existing life
  • 8.
    • All living things made of cells BUT… organisms can be very different.
    UNICELLULAR MULTICELLULAR Image from: http://www.agen.ufl.edu/~chyn/age2062/lect/lect_06/bacsiz.GIF http://www.angelbabygifts.com/ http://www.inclusive.co.uk/downloads/images/pics2/tree.gif
  • 9. CELL SIZE
    • Typical cells range from: 5 – 50 micrometers (microns) in diameter
    http://facstaff.bloomu.edu/gdavis/links%20100.htm
  • 10. How big is a micron ( µ ) ?
    • http://www.talentteacher.com/pics/005cb.jpg
    1 cm = 10,000 microns 1” = 25,000 microns
  • 11.
    • MULTICELLULAR ORGANISM don’t just contain MANY CELLS.
    Image from: http://www.isscr.org/images/ES-cell-Fig-2.jpg They have different kinds of cells doing different jobs
  • 12.
    • Cells in a multi-cellular organism become SPECIALIZED by turning different genes on and off
    Image from: http://www.ncu.edu.tw/~ls/graph/faculty_pictures/whole_time/SLC/SLC_lab-1.jpg Cell Specialization =DIFFERENTIATION
  • 13. SPECIALIZED ANIMAL CELLS
    • Muscle cells
    Red blood cells http://www.biologycorner.com/bio3/images/bloodcells3D.jpg http://www.mlms.logan.k12.ut.us/~ajohnson/Cells.html Cheek cells
  • 14. Specialized Plant cells
    • Guard cells
    Xylem cells Pollen Guard cells: http://botit.botany.wisc.edu/courses/img/Botany_130/Diversity/Bryophytes/Anthoceros/Guard_cells.jpg Xylem: http://botit.botany.wisc.edu/images/130/Secondary_Growth/Woody_Stems/Tilia_Stem/Secondary_Growth/One_Year_Stem/Primary_xylem_MC.jpg Pollen: http://www.uic.edu/classes/bios/bios100/labs/pollen.jpg
  • 15.
    • ________  __________  ___________ 
    ATOMS MOLECULES ORGANELLES IMAGE SOURCES: see last slide
  • 16.
    • ____________  ____________ 
    CELLS TISSUES IMAGE SOURCES: see last slide Similar cells working together
  • 17.
    • ___________  __________  ___________
    ORGANS ORGAN SYSTEMS ORGANISM IMAGE SOURCES: see last slide Different tissues working together Different organs working together