1. PACKAGING, TRANSPORTING and EXPORTING

2. Ribosomes Tiny (30um) – can only be seen through electron microscope
Synthesised in nucleolus of Eukaryote
Synthesised in Cytoplasm of Prokaryote
Recievesinformation carried from nucleus in the form of mRNA

3. Protein synthesis
Ribosomes attached to ER make proteins for export out of the cell
Ribosomes in the cytoplasm make proteins for use inside the cell – ie enzymes, hormones, etc

4. Endoplasmic Reticulum (ER)
Network of membranes and Sacs
Internal space (inside the folds) is called the lumen

5. Endoplasmic Reticulum
Rough ER – Studded with ribosomes Site of protein synthesis. Proteins are transported to golgi apparatus via golgi vesicles
Smooth ER – Site of Carbohydrate and Lipid Synthesis

6. Transport around the cell
Golgi Vesicles are used as vehicles to transport macromolecules to and from the Golgi Apparatus.

7. Golgi Apparatus
Modifies, sorts, and packages macromolecules for cell secretion or use within the cell
Enzymes within the cisternae modify proteins by adding carbohydrates (glycosylation)[12] and phosphates (phosphorylation to form a signal sequence which determines the final destination of the protein
Similar to a post office

8. OTHER FUNCTIONS OF GOLGI
Creation of lysosomes
Carbohydrate synthesis.
Transport of lipids around the cell

9. Synthesis, Packaging and Transport chain
1. mRNA comes from nucleus
2. Delivered to E.R (site of synthesis of various Macromolecules)
3. Sent to Golgi apparatus for labelling and delivery out of the cell (or internal) 1 3 2