Urea is converted to ammonia and carbon dioxide by the action of urease.What will be the effect on the rate if the temperature of the reaction is lowered from 37 °C (the optimum temperature)to 27 °C?

Question

Quizplus · Accepted Answer

Typically, enzyme-catalyzed reactions proceed faster at higher temperatures, but only up to a certain point called the optimum temperature. Above this temperature, the enzyme may become denatured and lose its catalytic activity. In the case of urease, its optimum temperature is 37 °C, so lowering the temperature to 27 °C will slow down the rate of the reaction. This is because the kinetic energy of the reactant molecules is lower at lower temperatures, and fewer of them will have sufficient energy to overcome the activation energy barrier for the reaction. Therefore, choice B is the best answer.

Urea Is Converted to Ammonia and Carbon Dioxide by the Action