Tuesday, November 20, 2007

Tane Stange Friday November 16th, 2007 3/3

What we did in class today...
  • Pre-Lab Quiz
  • Seperating plant pigments from leaves Lab

Thoughts ad Opinions

Last night we had to read about the lab, and get an idea of what we were doing in the lab for Friday. The pre-lab quiz was useful because we were supposed to already know what we are doing in the lab, but for those who didn't go over the procedure still had an idea from when we marked the quiz. The lab itself was simple, enough that we got started and completed it in the time provided. I was suprised that it worked, and we could see that the pigments clearly seperated on the chromatography paper. The only uncontrolled variables that would alter the results slightly were the amount of spinach pressed on the paper, and the amount of solution used in the test tube. Other than that, this lab was easy, and effective.

Above And Beyond

Like Dylan, I found a cheezy video on u tube, but on photosynthesis instead of Cellular Respiration. The video is brief, but does explain the light dependent reactions we are learning about.

http://www.youtube.com/watch?v=HrMka8vj73U

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