A biochemical reaction was carried out in the absence of enzyme and the rate of reaction was found to be 10^6 min-1. If the same reaction is now carried out in presence of enzyme, then the rate of the reaction will be and what is the activation energy for the same reaction in presence of enzyme1. same2.greater than 10^63.less than 10^6

Which of the following correctly describes how enzymes lower the activation energy of a biochemical reaction?Question 8Answera.Enzymes increase the temperature of the reaction, providing more energy to the reactants.b.Enzymes stabilize the transition state, reducing the energy required to reach it.c.Enzymes alter the equilibrium constant of the reaction, favoring product formation.d.Enzymes are consumed in the reaction and must be continually replaced.

What is the rate of Enzyme reaction and what are the factors that affect it.

How do enzymes speed up the rate at which a biological reaction occurs?Group of answer choicesBy increasing the energy of the reactant molecules.By increasing the total amount of energy released by the reaction.By decreasing the amount of energy needed to proceed through the reaction.By increasing the energy of the product molecules.By making the reaction release energy rather than requiring energy.

The magnitude of the energy of activation determines the _____ -- how fast the reaction occurs.

All of the following are true of enzyme-catalyzed reactions EXCEPT:A.the presence or absence of a post-translational modification may alter the activation energy Ea of the reaction.B.the enzyme does not affect the net reaction rate if the ratio of products to reactants equals Keq for the reaction.C.substrates can covalently modify the enzyme to cause a permanent decrease in the enzyme's turnover number kcat.D.the saturation of enzyme active sites by substrate molecules limits the maximum reaction velocity Vmax.Submit