Thursday, December 16, 2010

12/16/10

Paramecium


Today in class, we watched a video on the smartboard. We saw a paramecium cell moving around and spinning. We knew that i he paramecium cell was a bacteria cell because we believe that we saw capsules and cillia( cillia are tiny hair-like structure on the outside of the cell to help it with motion), which are characteristics of bacteria cells. We also knew that it could not be a plant cell because a plant cells don't move. We also thought that it was a prokaryotic cell (unicellular and doesn't have membrane bound organelles). The paramecium in the video was eating a red substance, which enabled us to see it because they are clear (like our cheek cells that we tested in November). The red stuff that it was eating was similar to the methyene blue that we used on our cheek cells because they both helped us to see the cells.
***Also, remember tto print out the study guide for Tuesday's test!!***
M.K.B.

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