1. Cell Structures Mr. Skirbst Life Science Topic 04

2. Cells Cells are the basic building block of all living things and are made up of organelles

3. Cell Theory Developed through the work of * Hooke * Leeuwenhoek * Schleiden

4. Cell Theory Three (3) points of theory:

5. Cell Theory Three (3) points of theory: 1. All living things made of cells

6. Cell Theory Three (3) points of theory: 1.All living things made of cells 2.Cells are basic unit of life

7. Cell Theory Three (3) points of theory: 1.All living things made of cells 2.Cells are basic unit of life 3.Living cells come from living cells

8. Cell Structure There are 10 basic structures inside cells called organelles

9. Organelles 1. Cell Wall (plants only) * provides support and protection

10. Organelles 2. Membrane * doorway to the cell

11. Organelles 3. Nucleus * control center of cell

12. Organelles 3. Nucleus (found inside are): * nuclear membrane (doorway to the nucleus)

13. Organelles 3. Nucleus (found inside are): * nuclear membrane (doorway to the nucleus) * chromosomes (these direct activities)

14. Organelles 3. Nucleus (found inside are): * nuclear membrane (doorway to the nucleus) * chromosomes (these direct activities) * nucleolus (little nucleus)

15. Organelles 4. Endoplasmic reticulum * transportation system (carries proteins)

16. Organelles 5. Ribosomes * protein factories

17. Organelles 6. Mitochondria * powerhouse of the cell

18. Organelles 7. Vacuoles * storage tanks (food and water)

19. Organelles 8. Lysosomes * clean-up crew

20. Organelles 9. Chloroplasts (plants only) * energy producers

21. Organelles 10. Cytoplasm * jelly-like material inside a cell