1. The Cell: Basic Review

3. The Cell ©http://www.terrapsych.com/cell.gif

4. Cell membrane ©http://micro. magnet. fsu

5. Cell membrane Consists of protein and lipid
Selectively permeable; controls all entering and exiting of molecules
All molecules enter the cell by way of osmosis, diffusion, or active transport
Antigen markers: protein or carbohydrates on the surface of the membrane that identify the cell for recognition by the immune system
Appears to be a target of disease

6. Mitochondria

7. The site of cellular respiration Produces ATP –energy supply for cells
Oval shaped organelle
The site of cellular respiration
Produces ATP –energy supply for cells
Place where glucose is broken down by the addition of oxygen

8. Endoplasmic Reticulum

9. Two types: Rough ER: manufactures and packages proteins
Has ribosomes attached to it
Smooth ER: stores and transports steroids, ions, etc. and filters toxins such as poisons and drugs

10. Golgi Complex

11. Customizes proteins with a carbohydrates (glycoproteins) or lipids (lipoproteins)

12. Lysosomes

13. Contains protein digesting enzymes
Capable of digesting cell from the inside if lysosome membrane breaks
Hence the nickname “suicide sacs”
Many cellular disorders are associated with their malfunction

14. Centrioles
Form the spindle fibers to which the chromosomes attach during mitosis

15. Nucleus

16. Control center of the cell
Surrounded by a double nuclear membrane
Contains chromatin consisting of DNA (genetic material)
Diseases affecting the nucleus are usually fatal