1. The Cell

2. Cell Theory The Cell is the smallest unit of life
Cells come from existing cells
All cells use energy and have a metabolism
All cells have a plasma membrane
All cells have genetic information in the form of DNA

3. Cell Size

4. Cell Size

5. Prokaryotic Cells

6. Eukaryotic Cells

7. Eukaryotic Cells

8. Nucleus Nuclear Envelope Nuclear Lamina Chromosomes Chromatin
Nucleolus

9. Ribosomes

10. Rough Endoplasmic Reticulum
Secretes glycoproteins which are encased in transport vesicles
Produce membranes

11. Smooth Endoplasmic Reticulum
Synthesis of lipids
Metabolize carbohydrates
Detoxify the cell
Stores calcium ions

12. Golgi Apparatus Cisternae The warehouse of the cell Trans Face
Modifies
Stores
Ships
Cisternae
Cis Face
Trans Face

13. Lysosomes Hydrolytic enzymes Digestion – fuse with food vacuoles
Recycle organic material
Apoptosis

14. Vacuoles / Vesicles

15. Endomembrane System

16. Mitochondrion

17. Chloroplast / Plastid

18. Peroxisome
Remove hydrogen atoms from substances and attach them to oxygen which produces hydrogen peroxide
Breaks down fatty acids
Detoxify alchols
Converts hydrogen peroxides to water

19. Cytoskeleton

20. Microtubules (Hollow Rods)
Maintenance of cell shape
Cell motility
Chromosome division
Organelle movement

21. Centrioles, Cilia and Flagella

22. Microfilaments (Solid Rods)
Maintenance of Cell Shape
Changes in Cell Shape
Muscle Contractions
Cytoplasmic Streaming
Cell Motility

23. Intermediate Filaments
Maintenance of Cell Shape
Anchorage of Nucleus and Organelles
Formation of Nuclear Lamina

24. Cell Walls

25. Extracellular Matrix

26. Intercellular Junctions
Tight Junctions
Desmosomes (anchoring junctions)
Gap Junctions

27. Plasmodesmata

28. Autogeneous & Endosymbiosis