How did these cell models work? What did we learn? What does semi-permiable mean?
Mr. Forde :-)
3 comments:
Anonymous
said...
The cell models work because the plastic bag is like a cell membrane which controls what goes in and out. We learned that the Lugol's had smaller molecules and could go in and out, and we proved this because there was purple in the starch. Purple shows up when Lugol's and the starch mixed.
The cell models work like real cells in a way because the plastic bag that represents a cell membrane only allowed certain things to enter and leave (the Lugol's solution). There was proof of this when only the starch turned a purplish color in both models, whereas the Lugol's stayed a clear yellow.
3 comments:
The cell models work because the plastic bag is like a cell membrane which controls what goes in and out. We learned that the Lugol's had smaller molecules and could go in and out, and we proved this because there was purple in the starch. Purple shows up when Lugol's and the starch mixed.
~Nicole~
The cell models work like real cells in a way because the plastic bag that represents a cell membrane only allowed certain things to enter and leave (the Lugol's solution). There was proof of this when only the starch turned a purplish color in both models, whereas the Lugol's stayed a clear yellow.
*Tanu*
My name keeps showing up as Tuna on my identity! Ugh!
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