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Agar Cubes Lab Report

Diffusion in agar cubes Introduction: All cells are dependent on a processes called diffusion, which is the movement of a substance from an area of higher concentration to an area of lower concentration. Cells need to obtain certain essential substances, like oxygen, for their survival. The rate of diffusion is said to be dependent upon the various factors: Size of molecules that have to diffuse, concentration gradient, the distance across which diffusion occurs, number of pores/openings, surface area and concentration. This rate of diffusion is measured by considering the time taken for changes to physical changes to occur. This experiment consists of using agar mixed with an indicator that changes color when places in a basic solution. It will measure…