Tuesday, October 11, 2011
Omega science diffusion lab: 10/11/11
Today we did a lab based on the cell membrane. One thing I learned from this lab is how diffusion and osmosis works. Also, I know that idodine is known as an "indicator" because when it's combined with starches, it turns a shade of purple. Molecules tend to move from areas of high conecntration to areas of low concentration, because they need their own space and spread out once they get their space. The plastic bag from the experiment acts like the cell membrane, letting in certain substances that fit in and not letting in other substances that don't.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment