Enzymes catalyze chemical reactions by which of the following?a. lowering the energy of activation in the reactionb. raising the energy of activation in the reactionc. increasing entropyd. increasing the free energy of the products

You are performing an enzyme kinetics experiment testing the effect of pH on reaction rate. You accidentally one of the tubes to react two minutes longer than the other samples. How would this affect the interpretation of the data you obtain for that one tube? A. No change in the interpretation of your data OB. Your data would represent an underestimate of the enzyme's activity at that one pH. OC. Your data would represent an overestimate of your enzyme's activity at that one pH. D. All of the data would be invalid.

Which of the following is NOT true about enzymes     A. they do not alter reaction equilibria     B. they accelerate the forward rate of a reaction     C. they decrease ∆G’0 of a reaction     D. they accelerate the reverse rate of a reaction      E. they stabilize transition states

An Enzyme..     A. Becomes part of the final products B. Is consumed by the reaction C. Is nonspecfic for substrate D. is heat & pH sensitive

The shape of the enzyme dictates how it reacts with other molecules in reactions. If anything happens to affect the shape of the enzyme, the reaction will either slow down or stop altogether. Which of the following factors can affect the shape of enzymes? Select all that apply.

Enzymes are biological catalysts that enhance the rate of a reaction by: stabilizing the transition state. decreasing the amount of free energy released. increasing the activation energy. increasing the amount of free energy released. O increasing the energy in the transition state.

Free energy (G) W+X Figure 6.2 Select one: O a. A O b. Y+Z O c. c O d. B O e. с W+X K Direction of reaction B Answer the question using the accompanying graph. Which portion of the graph shows the activation energy in the absence of enzyme? Y+Z

Which of the following is incorrect about an enzyme-catalyzed reaction? a. Its progress can be monitored as the disappearance of substrate Ob. Its progress can be monitored as the formation of product OC. The reaction rate can be expressed as the change in [enzyme] with time d. None; all the other choices are correct

Which of the following is true for all exergonic reactions? Group of answer choices A. The reactions are nonspontaneous B. A net input of energy from the surroundings is required for the           reactions to proceed C. Some reactants will be converted to products D. The products have more total energy than the reactants E. The reaction proceeds with a net release of free energy

When maltose is broken down into glucose monosaccharides, in an enzymatic reaction, the maltosemolecule is properly called:A. the substrateB. the productC. the catalystD. the enzymeE. the inhibitor