2.1.7 Organelles & the Production of Proteins

Question 1

Process of protein synthesis

Answer 1

• DNA from nucleus copied to molecule of mRNA via transcription
• mRNA strand leaves nucleus via nuclear pore
• Attaches to ribosome on RER
• Ribosome reads genetic instructions and synthesises a protein via translation
• Protein passes into lumen of RER and is folded and processes
• Processed proteins transported to golgi apparatus via vesicles
• Golgi apparatus modifies protein
• Leaves golgi apparatus via vesicle
• Vesicle fuses with cell surface membrane and releases protein by exocytosis