Question

The best explanation for the shape of the graph below is: Substrate concentration The rate of reaction increases until all the active sites are full and the reaction reaches a maximum rate. The rate of reaction increases until some active sites remain empty and the reaction reaches a maximum rate The rate of reaction increases until the concentration of hydrogen ions exceeds the optimum and the tertiary structure is destroyed. The rate of reaction increases until pH becomes a limiting factor The rate of reaction initially increases as the enzymes gain kinetic energy, until the enzymes denature and the shape of the active site is destroyed

Answer 1

When the temperature is increased, the average kinetic energy of the particles present is increased. When the particles have higher kinetic energy, they move faster and are therefore more likely to collide. Collisions (reactions) occur at the surface of particles.

The extent of product formation is determined as a function of time for a series of substrate concentrations, As expected, in each case, the amount of product formed increases with time, although eventually a time is reached when there is no net change in the concentration of S or P. The enzyme is still actively converting substrate into product and visa versa, but the reaction equilibrium has been attained. option A is correct