11/16

Today in class we went over our homework from last night which was the Double Bubble Map for DNA vs. RNA.

Then for the rest of the period we went over protein synthesis. We took notes on this during class and Mrs. Stein put up the notes on Moodle. We only took notes on the first two slides in the powerpoint. If you are a person that likes having organized notes, then read through the rest of the slides in the powerpoint. These are the two slides we took notes on:

There are two parts to protein synthesis: transcription and translation. Mrs. Stein had us draw this picture. It represents the whole process of protein synthesis. As you can see transcription happens in the nucleus and translation happens in the cytoplasm on a ribosome.

Here is a picture that represents what happens in the translation process more clearly. In translation, mRNA attaches to a ribosome. A tRNA carries only ONE amino acid. In the picture, the cloves shape is the tRNA and the little circle that it is holding represents the amino acid. The anticodon on the tRNA matches with the codon on the mRNA. Once the tRna has finished, it LEAVES the ribosome. All the amino acids join into a long chain called a polypeptide. This long polypeptide is what makes PROTEIN. Remember: Amino acids MAKE UP protein.

HOMEWORK: 1) 13.1 & 13.2 Flow Map of Protein Synthesis is due TOMORROW! If you need help use Moodle because Mrs. Stein put up some animations that are very helpful.


2) Tribune Article due Monday 11/21


3) There will be a test on Tuesday 11/22 on everything that we have covered in this chapter. Use your objectives to help you study!


The next scribe will be Andrijana.