1. Cells

2. Views of Cells

3. Why Are Cells Small? 30 µm10 µm Surface area of one large cube = 5,400 µm 2 Total surface area of 27 small cubes = 16,200 µm 2

4. Cell Types: Prokaryotic

5. Animal Cell

6. Plant Cells

7. Membranes Bilipid membrane Hydrophobic Hydrophilic Fluid-mosaic model Selectively permeable

8. Plasma Membrane

9. Nucleus of Cells The compartment that encloses the DNA DNA is found along fibers of chromosomes When cells are not dividing, chromosomes are unraveled

10. Nucleus of Cells How genes work DNA  RNA  protein Protein is the gene product (function)

11. The Endomembrane System The system is a collection of membranous organelles These organelles manufacture and distribute cell products The endomembrane system divides the cell into compartments

12. Overview of System

13. Endoplasmic Reticulum Rough ER Ribosomes Protein synthesis within vacuoles Plasma membrane repair Smooth ER No ribosomes Lipid synthesis Detoxification

14. Rough ER Secretory Proteins

15. The Golgi Apparatus

16. Lysosomes & Vacuoles

20. Cytoskeleton Skeleton of cells: shape, size, movement, attachment

21. Cilia and Flagella