Monday, March 9, 2020

Protein synthesis test tomorrow

Honors Biology class:

Your test on protein synthesis is tomorrow!

Here's an example of how to explain protein synthesis:

The first thing that happens when you need to make a protein is your cell receives a chemical signal.
The mRNA then heads into the nucleus and locates the gene (segment of DNA) that codes for the needed protein.
Transcription then begins, the gene is read and turned into a segment of messenger RNA.
The nitrogen bases in DNA are ATCG but the nitrogen bases in RNA are AUCG.
The strand of mRNA  created then leaves the nucleus and finds a ribosome. The ribosome reads the mRNA three letters at a time (codon) to determine what amino acids are needed. The ribosome calls out to the tRNA's to have them bring back the amino acids coded for in the mRNA.The tRNA returns to the ribosome and drops off the amino acids in the proper location by matching the codons on the mRNA with the anti-codons on the tRNA.  The ribosome then connects the amino acids together with a strong peptide bond. Translation has just been completed. The connected amino acids  then fold into the proper protein shape.


Tomorrow you will have to explain to me how to make a protein from a strand of  DNA

You can use your cartoon analogy as long as you don't have any of the protein synthesis terms on the part with the story AND you only have a key on the back stating which things represent each part of protein synthesis--- There should not be any extra descriptions on the back of the paper stating directly how that part of protein synthesis works.