1. Cell Structure and Function

2. Procaryotic Cells No membrane bound organelles Typically unicellular

3. Eukayotic Cells Have membrane bound organelles Typically multicellular

4. Nucleus

5. Ribosomes Composed of two subunits consisting of rRNA and proteins Attached and unattached ribosomes Polysomes

6. Rough ER Proteins produced are exported from cell All proteins enter lumen to be modified

7. Smooth ER Testes cells smooth ER produces steroids Liver cells smooth ER detoxifies alcohol All cells smooth ER produces vesicles for transportation of proteins to the golgi bodies

8. Golgi Bodies Modifies, packages, stores and distributes proteins Proteins from rough ER will be shipped to cell membrane for exocytosis Produces lysosomes Cis and trans face

9. Vesicles and Vacuoles Lysosomes contain hydrolytic enzymes WBC have many golgi bodies Vacuoles carry larger substances ex. bacteria

10. Mitochondria Site of cellular respiration (production of ATP) Cells using exocytosis and endocytosis require a great deal of ATP

11. Plasma Membrane Lipids pass easily through and polar compounds require proteins Proteins in cell membrane determine cell function

12. Plasomodesmata

13. Intercellular Links

14. Surface Area to Volume Cells require a efficient removal of wastes and in take of nutrients This limits the size of the cell