Problem

FICK’S LAW Fick’s law* says that f (t ) =C (1 –e−kt ), where f (t ) is the concentration o...

FICK’S LAW Fick’s law* says that f (t ) =C (1 e−kt ), where f (t ) is the concentration of solute inside a cell at time t, C is the (constant) concentration of solute surrounding the cell, and k is a positive constant. Suppose that for a particular cell, the concentration on the inside of the cell after 2 hours is 0.8% of the concentration outside the cell.

a. What is k ?


b. What is the percentage rate of change of f (t ) at time t ?


c. Write a paragraph on the role played by Fick’s law in ecology.

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