1. Protein Synthesis

2. The Players DNA mRNA rRNA tRNA Amino acids Endoplasmic Reticulum
Golgi Apparatus
There are 7 main players in the process of protein synthesis. There are the instructions in the DNA that code for the sequence of amino acids in the protein. The information in the DNA is transcribed and then translate by the 3 RNAs. The polypeptide chain is then moved from the ER to the Golgi where it is sorted, finished and released. We will look at each of these steps in some detail but the nitty gritty will wait until we reach the genetics unit.

3. The Field

4. Transcription - the Nucleus
DNA unzips
mRNA is created using the DNA as a template
mRNA leaves the nucleus through nuclear pores

5. Translation occurs in the RER
mRNA attaches to ribosome
tRNA brings in amino acids
Codon-anticodon match
Dehydration synthesis – protein chain elongates
Message done
Protein released
Ribosome falls apart
mRNA breaks up
mRNA
tRNA
Protein
chain
ribosome
amino
acids

6. Post Processing in the Golgi
Protein with RER membrane moves to Golgi
Protein “finishing” in Golgi
Protein released to final destination