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DISCOVERING CELLS

In this lesson, students will learn about the cell theory and the structure and function of cells. They will explore the history of cell discovery, different types of cells, and the organization of cells in multicellular organisms. The lesson includes interactive activities and review questions.

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DISCOVERING CELLS

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  1. DISCOVERING CELLS CH3 SEC 1

  2. PURPOSE • PURPOSE/GOAL- STUDENTS WILL LEARN THAT ALL LIVING THINGS ARE COMPOSED OF CELLS. TO BE ABLE TO EXPLAIN THE CELL THEORY.

  3. PICK 5 WORDS AND DEFINE

  4. AN OVERVIEW OF CELLS • KEY- CELLS ARE THE BASIC UNITS OF STRUCTURE AND FUNCTION OF LIVING THINGS • KEY- CELLS FORM THE PARTS OF AN ORGANISM AND CARRY OUT ALL OF THE ORGANISMS FUNCTIONS • STRUCTURE- HOW CELLS ARE PUT TOGETHER VARIES WIDELY ACCORDING TO EACH FUNCTION

  5. DIFFERENT TYPES OF CELLS…CAN YOU NAME THEM?

  6. CELLS CONTINUED • FUNCTION- INCLUDES OBTAINING OXYGEN, GETTING RID OF WASTES, OBTAINING FOODS, AND GROWING. • KEY- ALL CELLS CARRY OUT THE BASIC PROCESSES OF LIFE IN A SIMILAR WAY • KEY- CELLS INVISIBLE TO HUMAN EYE • KEY- THE INVENTION OF THE MICROSCOPE MADE IT POSSIBLE TO DISCOVER AND LEARN ABOUT CELLS

  7. SKETCH AND IDENTIFY

  8. HISTORY • ROBERT HOOKE- IN 1663, NAMED ‘CELLS’ AFTER HE VIEWED BARK UNDER A MICROSCOPE AND THEY LOOKED LIKE ‘SMALL ROOMS’ • ANTON von LEEUWENHOEK- ABOUT THE SAME TIME, OBSERVED TINY ORGANISMS AND CALLED THEM ‘ANIMALCULES’ MEANING ‘LITTLE ANIMALS’

  9. CELLS • http://safari.santeesd.net/SAFARI/montage/play.php?keyindex=37380&location=local&filetypeid=7 • http://search.aol.com/aol/video?s_it=sb-top&s_chn=prt_hmpg&v_t=non_chrome-hyplogusaolp00000112&q=cells+bbc

  10. PLANT CELL- list and define 3 parts of cells

  11. ANIMAL CELL- list an define 3 organelles

  12. THE CELL THEORY • CELL THEORY- IS THE WIDELY ACCEPTED EXPLANATION OF THE RELATIONSHIP BETWEEN CELLS AND LIVING THINGS • 1. ALL LIVING THINGS ARE COMPOSED OF CELLS • 2. CELLS ARE THE BASIC UNITS OF STRUCTURE AND FUNCTION IN LIVING THINGS • 3. ALL CELLS ARE PRODUCED FROM OTHER CELLS

  13. CELL THEORY • KEY- THE CELL THEORY HOLDS TRUE FOR ALL LIVING THINGS, NO MATTER HOW BIG OR SMALL. • UNICELLULAR- ORGANISMS COMPOSED OF A SINGLE CELL • EX- BACTERIA • MULTICELLULAR- ORGANISMS THAT ARE COMPOSED OF MANY CELLS

  14. UNICELLULAR- SINGLE CELLED ORGANISMS sketch and label

  15. CELLS • KEY- IN MULTICELLULAR ORGANISMS, CELLS ARE OFTEN ORGANIZED INTO TISSUES, ORGANS, AND ORGAN SYSTEMS • TISSUE- IS A GROUP OF SIMILAR CELLS THAT WORK TOGETHER TO PERFORM SPECIFIC FUNCTIONS • EX- BRAIN TISSUE CONSIST OF NERVE CELLS

  16. BRAIN CELLS (NERVE)

  17. CONT’D • ORGAN- MADE OF DIFFERENT TISSUES THAT WORK TOGETHER • EX- BRAIN MADE OF NERVOUS TISSUE AND OTHER TISSUE TO PROTECT IT • ORGAN SYSTEM-A GROUP OF ORGANS THAT WORK TOGETHER • EX - NERVOUS SYSTEM

  18. SKETCH CELL ORGANIZATION HINT THE CELL IS FIRST

  19. COPY- UNI VS MULTI ORGANISMS

  20. http://www.brainpop.com/science/cellularlifeandgenetics/cells/http://www.brainpop.com/science/cellularlifeandgenetics/cells/

  21. REVIEW QUESTIONS • P.85 • 1-AB • 2-AB • 3-A • 4-B

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