-Protein Synthesis Activity- (Nov. 18th, 2011)

Hey guys!! It's Eunice C!

Today, thankfully there was no other homework due besides previewing UP. 15-20. BUT, remember to consistently work on homeworks that's due Monday: Tribune article, UP 39-40, UP 23-28, UP 15-20, read 13.3, and KEEP STUDYING FOR THE DNA/RNA TEST ON TUESDAY!
So today, we did a protein synthesis Activity with our lab group partners! WOOHOO!! We had to construct a model of protein synthesis with nucleic acid model kit. First, we put together a double-stranded DNA molecule with a sequence. IF you got Mrs. Stein's initials, you moved onto the next step. Next, using the left strand DNA molecule, we constructed a complementary mRNA nucleotide strand. (Transcription!) *Remember, to construct mRNA from DNA, the enzyme RNA polymerase is used, with complementary mRNA nucleotide strand, and all of these occur in the nucleus. And uracil is used instead of thymine.
Last but not least comes translation. *Translation occurs in the cytoplasm. We had to attach amino acid to tRNA, then attach it to the codon of mRNA, and attach with hydrogen bonds. And continue this for the next 2 mRNA and amino acid groups.
Finally, if you have 3 initials you are good to go!


YAY its finally posted.....haha this is a video of protein synthesis! ENJOY

EXTRA CREDIT!

Alright guys... 2 extra credit opportunities!

Click on this link and answer the following questions.

1. What color is the RNA backbone in this activity?

2. What 3 amino acids make up the polypeptide chain at the end of the protein synthesis activity?

First 4 people to email me the answers will get extra credit!

Opportunity #2... click on this link, enter in your FULL name... and complete the 'quiz'. You will get extra credit based on your score. This opportunity will expire on Sunday at midnight!

PROTEIN SYNTHESIS

hey guys!! its kelly

so we started off todays class by going over last nights homework which was the double bubble map and then we started talking about PROTEIN SYNTHESIS which is the process in which proteins are made

PROTEIN SYNTHESIS has two parts: TRANSCRIPTION and TRANSLATION

TRANSCRIPTION is when DNA is used as a template to make messenger RNA & it takes place in the NUCLEUS

TRANSLATION is when the messenger RNA is used to make PROTEINS in the RIBOSOMES

*Mrs. Stein also said that we should know that DNA is transcribed to RNA & RNA is translated to PROTEINS*

I hope this video helps!!!

http://www.youtube.com/watch?v=PEDQoQuIhkg

sorry guys but the video wouldn't load on the blog

The next scribe is EuniceC

Lego DNA

Hi everyone its Eleni! Today (Monday) in class we did a lab where we built DNA models using different color lego like pieces. The packet held the instructions to building the rungs and where to put the rods and hydrogen bonds. The cytosine (blue) connected to the guanine (yellow) and the adenine (orange) connected to the thymine (green). It was a nine rung ladder and the nitrogen bases were held together with a white hydrogen bond. The black deoxyribose sugar held together the base and the phosphate. We then took off the left half of the model and rebuilt the right side making a whole nother DNA structure. I did take pictures in class with my phone but as I've mentioned in past posts I am not good with computers so I'm not going to take the risk plugging my phone into the computer! But everyone was in class and hopefully can remember what it looks like! that really all we did in class today so everyone...STUDY!!

Also everyone pleaseeeee request a letter from Mrs. Stein to give the children a christmas present!! Pair up with a friend and help donate!!