Right answer is (b) Variation in rate of reaction with surface concentration of the substrate
For explanation: The plot in the above diagram represents the variation in rate of the reaction catalyzed by porous particles containing immobilized enzyme with surface concentration of the substrate (β), which is dimensionless. The top curve shows that there is no diffusional control (substrate modulus for internal diffusion = 0) and the following lower curves shows the effect progressively increasing substrate modulus equaling 10, 30, 100, 300, 1000 etc. The substrate modulus for internal diffusion is normalized with respect to Km in order to make independent of the absolute value of the exterior substrate concentration. Concentration profile comes into picture when the enzymes are immobilized on spherical surfaces. Arrhenius plots are related temperature and rate of reaction. Lineweaver Burk plot is a plot of deals with reversal of Miachelis Menten equation for enzyme kinetics.