Mitochondria are distributed in a spherical cell with a rate of oxygen consumption per unit volume of: QO2=QO2,max(Rr) where QO2,max is a constant, r is radial position, and R is the cell radius. The oxygen concentration at the cell surface is kept at a constant value of C0. a. List the boundary conditions. b. Derive an expression for the oxygen concentration as a function of radial position at steady state using the Shell Balance Method c. Derive an expression for the oxygen concentration as a function of radial position at steady state using the Differential Equation Method. d. What is the flux of oxygen at r=R