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Lab: The Effect of Concentration on the Rate of Diffusion
Free biology lab perfect for biology or life science students in grades 8-12
PURPOSE: This experiment will explore the concentration gradient by measuring the rate of diffusion in a number of theoretical cells.
The objectives for this lab are:
(1) To define concentration gradient
(2) To explain experimental data concerning different concentration gradients
(3) To complete a data table and prepare a graph to illustrate the data
(4) To apply information from this experiment to other related problems.
MATERIALS: 6 pieces of dialysis tubing, sucrose solutions of varying concentrations, String, Balance, 6 beakers or plastic cups, Stopwatch