Monday, September 9, 2013

Honors Bio Blog 5/69 (Osmosis Lab Part 2)

Osmosis and Diffusion Lab Part 2

Today in class we continued our study of osmosis and diffusion by performing another lab. We began by creating three "cells" in different shapes: cuboidal, columnar, and epithecial. We then allowed our three cells to sit in a beaker full of NaOH for fifteen minutes. We then removed the cells from the water and examined how much the NaOH had diffused into the cell. We took very careful measurement of exactly how far into the cell the NaOH had diffused into the cells and realized that the reason that the NaOH was able to diffuse into the cell was due to the semi-permeable membrane present in the cell.

1 comment:

  1. The gel was not a cell but a representation of a cell with different sizes to show how it influences diffusion.

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