Saturday, November 20, 2010

The Scribe List - Cycle 3

This is The Scribe List. Every possible scribe in our class is listed here. This list will be updated every day. If you see someone's name crossed off on this list then you CANNOT choose them as the scribe for the next class.


This post can be quickly accessed from the [Links] list over there on the right hand sidebar. Check here before you choose a scribe for tomorrow's class when it is your turn to do so.


IMPORTANT: Make sure you label all your Scribe Posts properly (Your Name, Unit Title, Scribe) or they will not be counted.


JR                         Zachary                     Krystian
Angela                   Jacob                       Yvette                 Sam     
Bridget                  Taylor                       Tara                    Ariana
Serena                   Neal                         Michelle              Saadia
Daniel                    Olivia                       Michael               David
Melissa                  Sabina                     Madison

Thursday, November 18, 2010

Protein Synthesis Lab






Today we started off by turning in UP pgs. 15-20 and congratulated Sam for doing well on the first time scribing. Next we jumped right into the lab on Protein Synthesis. This lab was meant to help us further understand the role sof mRNA and tRNA through constructing models of protein synthesis.








LAB: Step One: We had t build a DNA molecule with a specific sequence of nucleotides.



Step Two: Each group had to "unzip" the DNA molecule into two strands.



Step Three: Take the left strand and construct a matching mRNA nucleotide strand (this step is the process of transcripton)



Step Four: Unzip the molecule and take the mRNA strand and take it to the ribosome in the cytoplasm.



Step Five: Match up the bases of the mRNA with the ones from tRNA. (Translation)



Step Six: Attach the amino acids and the polypeptide bonds to the correct molecules.



Step Seven: Detach the amino acid chain from the tRNA's





HOMEWORK:
Finish Lab in Up (15-20), UP 27-28, and Tribune Arrticle(11/23)

THE NEXT SCRIBE IS....
J.R.

Wednesday, November 17, 2010

Pokemon Transcription



Today en la clase Mrs. Stien collected our flow chart HW and gave us three pictures for notes. We watched an animation of transcription We took notes on transcription and translation. Here are the notes:


TRANSCRIPTION= (RNA Synthesis) One strand of DNA serves as a template for the synthesis or mRNA (DNA: TACCAGGTT)-----(mRNA: AUGGUGGAA)
this thing a ma giger right hereee^ is the trancribe

Occurs in the Nulceus


RNA plumerase joins RNA nuleotides


______________________________________________________________________


TRANSLATION=


mRNA- 3 codon (AUG)


tRNA- 3 anticodon (UAC)




Example of start codon- AUG
>>> 3 types of each.
Example of stop codon- UAA




mRNA attaches to a ribosome


Each tRNA carries 1 A.A.


Anticodon on tRNA matches with a codon on mRNA


A.A. bond together forming a polypeptidee chain.


Long polypeptide chains make a...... You guessed it PROTIEN!!!


Picachu I choose you.
Picachu= Michael D.

DNA Workshop!





Check out the DNA Workshop!  Complete the activity and email me the following:
1.  What color is the backbone of the RNA molecule?
2.  What three amino acids are formed at the end of the protein synthesis activity?

Have Fun!
during class: mrs. S checked in our homework. we also went over the homework. we took notes!!!!
NOTES:
rRNA: makes up alot of the ribosome, cotains instructions to make ribosomes,
mRNA: messenger. carries the instructions from DNA to ribosome
tRNA- "transfer". carries amino acids to the growing polypeptide chain.
Amino acid: building blocks of proteins
transcription: DNA ---- mRNA
translation: mRNA ------ protein.
HW: 13.1 and 13.2 flow map. "protein synthesis"
2. tribune article. 11/23
3. TEST 11/23

DNA Replication! Can't live without it!

Today in bio class we turned in the homework from the previous night- pgs, 7-14 in our UP and Mrs. Stein reviewed with us what we had learned. Basically, what makes up a nucleotide? Phosphate, a nitrogen base, and deoxyribose (sugar) and what connects nucleotides? Hydrogen bases. We took a quiz on on section 12.3 and then took MORE notes on DNA replication. We learned about histones, which are proteins which DNA is wrapped around and that DNA replicates in the S phase of interphase. We also learned that DNA replication results in two indentical DNA strands. Finally, we learned about Semi-Conservative Replication, which is when each new molecule contains one old strand and one new strand.
 
Then, we watched an animation about DNA Replication and a movie about the Human Genome Preject. The HGP is a bunch of scientists that are striving to map out all the genes in the human body and where they are located. They are practically finished.
 
In other news, Max turned 5 MONTHS OLD YESTERDAY!!!!!!!
ANDDD
WE HAVE A NEW KID IN OUR CLASS NAMED SAM!!!!!!
 
Jose is the next scribe

Wednesday, November 10, 2010

PARENT TEACHER CONFRENCES TONIGHT!!!!!!!!!



Today when we came into room 360 we turned in our guided reading notes of our choice from section 12.2! and we picked up some graded work from the front counter along with two pictures that would be used in our notes. Then Mrs S gave us each a new progress report!!!!!!!!!! After completing that portion of the class then we got asigned a brand new project for this unit!!!!! YAY!!!!!!!!!! this project is called the Tribune Articale and directions to complete it are on pg 3 of our new UP packet. (This project has to be all electronicaly done. NO GLUEING OR TAPPING ONTO THE PAGE!)




Just a side note if Mrs. S asks if you are excited about something say yes because Niel got candy when he did it.




After all of that we split up into groups of about 4 people and we wrote a paragraph with the words:


Phosphate group, double helix, structure, DNA, Nitrogen base, protein, code, and nucletide


after finishing our paragraphs and reading them to the class we toke some guided notes about the structure of DNA (View picture above)


And then after that long long hard day of learning in Bio room 360 we watched a movie about the structure of DNA voiced by no other then BILL NYE THE SCIENCE GUY!


tonights homework is:

Read UP 11-14

UP pgs 7-8

Tribune article 11/23


tonights scribe is budumbudumbudmbudmbudum crash!!!!!
OLIVIA