July 13th AM

Today, we watch Rory repeat his experiments on precancerous cells to get more data on the elasticity or softness of the cells. Basically, you indent the cell at various points with the cantilever tip and pull back the tip and look at the force graph that is plotted. A gentle slope means that the cell is soft. A steep slope means that the cell is more rigid and less elastic. They pick the nucleus to test for elasticity so far. I think they should pick somewhere on the cell membrane if they really want to measure the elasticity of the cell. The nucleus is like the egg yolk of an egg. To test how hard the egg is, you would really test the hardness of the shell and not the egg yolk??? Just my opinion. I may be wrong.I worked on the lesson plan assignment while waiting for someone to appear at the lab.