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10/27 & 10/28 - 7 th Grade Agenda

10/27 & 10/28 - 7 th Grade Agenda. Learning Objective: Learn about Organelles Collect: HW: Reading & Note Taking p. 53 - 56 Chap 2 Test Brainpop: Cells Video: Science in Action: Cells Class Reading p.88-89 HW: Reading & Note Taking p. 57 - 60 Reminder HW: Cell Model due 11/7 & 11/8.

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10/27 & 10/28 - 7 th Grade Agenda

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  1. 10/27 & 10/28 - 7th Grade Agenda Learning Objective: Learn about Organelles Collect: HW: Reading & Note Taking p. 53 - 56 Chap 2 Test Brainpop: Cells Video: Science in Action: Cells Class Reading p.88-89 HW: Reading & Note Taking p. 57 - 60 Reminder HW: Cell Model due 11/7 & 11/8

  2. Reflection • What are the 3 ways you can tell whether something is alive or not. (Write in complete sentences)

  3. The basic unit of structure and function in living things is called C_____ ells

  4. croscope The invention of the mi_______ made it possible for people to discover and learn about cells

  5. In 1663 Robert Hooke observed the structure of thin slice of c____ using com________ microscope ork pound Drawing of dead cork cells by Hooke

  6. Microscopes • Magnification: How la______ an image can appear. • Resolution: How sh______ an image can appear rge arp

  7. Which image has higher resolution? B A

  8. Which image has higher magnification? B A

  9. What is the total magnification of the microscope? 10X 20X 10 X 20 = 200

  10. What is the total magnification of the microscope? 10X 15X 10 X 15 = 150

  11. Grain of Pollen Scanning Electron Microscope Optical Microscope

  12. More Electron Microscope Images

  13. Head of a Mosquito 1000 X 200 X

  14. Guess what this is? Toilet Paper Magnified 500X

  15. Real pictures of silicon atoms • What was the magnifications? • 1,000,000 X

  16. iving Cell Theory: All l______ things are composed of cells

  17. Cell Theory: Cells are the basic unit of str______ and f________ in living things ucture unction

  18. Cell Theory: All cells are pr_______ from other cells oduced

  19. A tiny cell structure that carries out specific function within the cell is called _____________ Organelle

  20. Cell Wall The _________ is a rigid layer of nonliving material that surrounds the cells of plants and some other organisms

  21. The ____________ controls what substance come into and out of a cell Cell Membrane Cell’s Doorway

  22. The ____________ is the cell’s control center, directing all of the cell’s activities Nucleus Brains of the Cells

  23. The _____________ are called the powerhouses of the cell because they produce most of the energy the cell needs to carry out its functions Mitochondria Powerhouse

  24. Endoplasmic Reticulum The _________________ are passageways that carry proteins and other materials from one part of the cell to another. Freeway of the Cells

  25. Ribosomes The ________ are small grain like bodies which are attached to the outer surface of the endoplasmic reticulum. that act like factories to produce proteins Protein Factory

  26. The ___________ can be thought of as the cell’s mailroom. It receive proteins from endoplasmic reticulum and distribute them to other parts of the cell. Golgi Bodies Mailroom

  27. Chloroplasts The __________ are only found in plants. It capture energy from sunlight and use it to produce food for the cell. Solar Cells

  28. The ________ are water filled sac floating in the cytoplasm. It act as the storage area of the cell. Vacuoles Storage Area

  29. Lysosomes The ________ are small round structures that contain chemicals that break down large food particles into smaller ones Cell’s Cleaner

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