Tuesday, October 12, 2010

Hey everybody!

Monday's class was pretty busy. We started off the day by recieving back privious work.We were handed back our cell structure and function lab, oil spill video rubric, cell quiz, cell color code, and grade reports. Mrs.stein went over the answers on the cell quiz (if you want to go over your quiz you can go to the TLC and get some help). Then we talked about the homework, which is- The enzyme lab (lab on up 24-30) and to read 10.1 and 10.2 with flow map and title it "cell cycle"-go to moodle or see your blue packet for help and examples. Next we were told to report to the math lab on tuesday to begin our cancer risk survey and if we had time left over to begin research on our cancer paper. Later we took a few quick notes, which should have been review about the lab. The notes were...

Catalyst
  • A substance that sppeds up a chemical reaction
  • Catalysts decrease the amount of energy needed to start the chemical reaction
  • DOES NOT get used during the reaction


Enzymes


  • Proteins that act as biological catalysts
  • Enzymes are very specific
  • substrates fit like "lock and key"
  • Affected by changes in PH, temperature, substrate concentration
Lastly each group gave data about their enzyme lab. The data we gave was the temperature that our individual group was given and the average height of the bubble. The whole class copied down the data and discussed why the data was the way it was. Our data should have shown that there was the highest bubble at 37 degrees celsius because that is our body temperature, so enzymes are working the most at that temperature. Our class data was kind of different and Mrs. Stein said that we probably did some lab errors, but its fine. When we were done collecting data we worked on our enzyme lab questions for the last few minutes left of class. 


The next scribe is Izabella!





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