Assuming that the normal Src is all bound to the plasma

Question

Assuming that the normal Src is all bound to the plasma membrane and that the mutant Src is distributed throughout the cytoplasm, calculate their relative concentrations in the neighborhood of the plasma membrane. For the purposes of this calculation, assume that the cell is a sphere with a radius of 10mm and that the mutant Src is distributed throughout, whereas the normal Src is confined to a 4 nm-thick layer immediately beneath the membrane. (For this problem assumethatthe membrane has no thickness. The volume of a sphere is (4/3pr3).

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