Right answer is (c) Substrate concentration versus effectiveness factor
The explanation is: The plot in the above figure predicts the variation in substrate concentration in the center of the immobilized enzymes with effectiveness factor. Values of β (representing SR/Km) of 10, 1 and 10^-3 are illustrated. At high effectiveness factor, the substrate concentration drops significantly towards the center of the particles. Whereas at low effectiveness factor, the substrate concertation drop is so severe that the centers of the particles encounter very little substrate. Variation in temperature and activity is given by Arrhenius plots. Activity versus pH always gives a bell-shaped curve. Miachelis Menten plot is a plot which gives hyperbolic curve.