An investigation into the effect of diffusion on the size of a cellWhat I am going to do is place some agar phenolphthalein in a HCl solution and time until the cubes go clear.
Member rating: No Rating | Words: | Submitted: Tue Feb 06 2007
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
An investigation into the effect of diffusion on the size of a cell Introduction What I am going to do is place some agar phenolphthalein in a HCl solution and time until the cubes go clear. Theory Diffusion is the passive transport of how substances cross membranes. It is the movement of particles from of particles of a higher chemical potential to a lower one. In all diffusion the net flux of the particles transported is equal to physical property multiplied by the gradient. Diffusion happens because of the second law of thermodynamics; the entropy of closed system will always increase in time. Also substances being diffused go from a state of higher order to a state of lower order, so diffusion is a completely natural process for it requires no energy to happen. The rate of diffusion is dependant on a number of factors- * Particles will diffuse quicker when there...


