Protein Synthesis- the most exciting journey in the world!!

this is Rachael, Andy and Bens work on protein synthesis for mr rothery.    It is quite brilliant

1

 

The mRNA consists of four bases, adenine, cytosine, guanine and uracil. A ribosome attaches to the mRNA at a start codon. The ribosome encloses two codons.

2

The tRNA diffuses to the ribosome and attaches to the mRNA start codon by complementary base pairing.

3

The next amino acid carrying tRNA attaches to the adjacent mRNA codon.

4

The bond between the amino acids and the tRNA is cut and a peptide bond is formed between the amino acids.

 

 

 

5

The ribosome moves along one codon so that a new amino acid carrying tRNA can attach. The free tRNA molecule leaves to collect another amino acid. After this the cycle repeats from stage three.

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