1. Chapter 2 Cells http://www.youtube.com/watch?v=Rxq0Kqw327s bill nye cell video 23 min

2. Standards to master : Chapter2  Standard #1: Cell Theory (7.S.3.3.2)  Know men who contributed to cell theory  Define the cell theory  Standard #2: Microscope (7.S.3.3.1)  Types of microscopes used  Know how to use microscope on a basic level  Standard #3: Cell Parts & Function (7.S.3.3.1) (7.S.1.1.3) (7.S.1.2.3) (7.S.1.6.2) (7.S.1.6.3 )  Identify and name cell organelles  Know function of cell organelles  Compare and contrast plant and animal cell

3. Vocabulary Words to Know:  Cells  Cell membrane  Cytoplasm  Cell wall  Organelle  Nucleus  Chloroplasts  Mitochondria  ribosome  Endoplasmic reticulum  Golgi body  vacuole  Tissue  Organ  Prokaryotic  Eukaryotic  Cell theory  Host cell

4. Microscopes:  Compound light microscope is what we use in school.  Makes objects bigger using lenses and light.  Magnifies up to 1000x – 2000x  Can view living things  Electron microscopes are used when objects are too small to be seen with compound light microscope

7. Cell Theory: https://www.youtube.com/watch?v=4OpBylwH9DU

8. Scientists who contributed to Cell Theory:

9. ScientistYearWhat did he contribute? 1600’s1 st microscope invented Robert Hooke1665Discovered cellular composition of cork Created the word “cell” Anton Leeuwenhoek 1674Improved microscopes Discovered “Animalcules” (microorganisms under microscope) Discovered Bacteria sample in mouth Matthias Schleiden 1838Discovered plants made up of cells Co-founder of cell theory Theodor Schwann 1839Discovered animals were made up of cells Co-founder of cell theory Rudolph Virchow 1855Stated all living things come from other living things Scientists & the CELL THEORY:

10. Robert Hook: 1665 (British)  Originator of the word “cell”  Study thin slice of cork  In the cork he saw cell wall (plant cell)

11. Antony van Leeuwenhoek: 1673 (Dutchman)  Father of Microbiology  Improve microscope  Discovered “Animalcules” which are microorganisms under the microscope

12. Matthias Schleiden: 1838 (German)  Study plant with microscopes  Discovered plants made of cells.  Co-founder of modern cell theory (cell basic unit of living things)

13. Theodor Schwann: 1839 (German)  Co-founder of cell theory  Discovered animals are made of cells

14. Rudolf Virchow: 1858 (German)  “Every cell originates from an existing cell”  Application of the cell theory to explain the effects of disease in the cell.

15. Cell structure:  Common cell traits: 1) Cell smallest unit capable of performing life function 2) All cells have cell membrane & cytoplasm 3) Cells come in many sizes & shapes (tell function)

16. From cell to organism:  Tissue: group of similar cells working together to do 1 job  Organ: structure made of 2 or more different types of tissues that work together to do job.  Organ system: Group of organs working together to perform certain function.

18. 2 Categories of Cells: 1) Prokaryotes:  Cells without Nucleus  Unicellular organisms  No internal membrane bound structures  Single chromosome (DNA) called nucleoid  Example = E. coli Bacteria 2) Eukaryotes:  Cells with Nucleus  Unicellular or multicellular  Have many kinds of tissue made up of different cell types  Example: Plant & Animal & Protists

19. Difference between plant and Animal cells: Plant Cell Animal Cell Cell wallNo cell wall Chloroplast (chlorophyll) No chloroplast (chlorophyll) Vacuole biggerVacuole smaller

21. Cell Parts http://www.youtube.com/watch?v=-zafJKbMPA8 http://www.youtube.com/watch?v=-zafJKbMPA8 cell organelle rap song

22. Cell Wall:  This ridged structure made of cellulose surrounds a plant cell membrane & supports and protects it.  Like a door lets some things in & out and not others

23. Cell Membrane:  A selectively permeable outer boundary of the cell that controls what enters and leaves.  protective layer around ALL cells  Inside cell wall (if cell has one)

24. Cytoplasm:  Gel-like substance inside the cell membrane.  Most cell life processes happen here

25. Organelles:  In cytoplasm Structures in cell that carry out specific jobs.  Like the machines in a factory

26. Nucleus:  Directs all cell activities  The brains of cell  Contains instructions (DNA) for everything cell does

27. Chromosomes:  Strands of DNA found in the nucleus.  Blueprint or instructions for what product cell is producing

28. RNA:  Foreman or Boss carries out instructions on blueprints.

29. Chloroplast:  It’s job is to trap sunlight & change it into sugar.  Only in plant cells

30. Mitochondria:  The Power House of the cell.  It’s job is to break down food molecules and release energy.

31. Ribosomes:  It’s job is to make protein.  Worker bees of cell

32. Endoplasmic Reticulum (ER):  It’s job is to move materials around WITHIN the cell.  Series of folded membranes  2 types of ER: 1) Rough ER: has ribosomes attached 2) Smooth ER: no ribosomes attached

33. Golgi Body (Apparatus):  It’s job is to package and move protein to the OUTSIDE of the cell.  Stacked flat membrane

34. Vesicles:  The Package protein is in  small, membrane- bound spheres whose contents are isolated from the surrounding cytoplasm

35. Vacuoles:  Storage area in cell for water and food.  Plant cell vacuole much larger than animal.

36. Lysosome:  This organelle contains chemicals to digest cell waste and worn out cell parts.

37. http://www.youtube.com/watch?v=fKEaTt9heNM 6 minute animation of cell and organelles http://www.youtube.com/watch?v=g4L_Q O4WKtM Guy talking cell as factory very good