Multiple Choice
In the context of organic chemistry reactions, what causes the trp repressor protein (TrpR) to bind to DNA in the trp operon?
3. Acids and Bases
Organic Chemistry Reactions
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Which of the following statements is true about enzyme-catalyzed reactions?
A
Enzymes are consumed in the reaction and must be replenished.
B
Enzymes change the equilibrium position of the reaction.
C
Enzymes increase the activation energy of the reaction.
D
Enzymes lower the activation energy, increasing the reaction rate.
Verified step by step guidance1
Understand the role of enzymes in chemical reactions: Enzymes are biological catalysts that speed up reactions without being consumed in the process.
Recognize that enzymes do not change the equilibrium position of a reaction. They only affect the rate at which equilibrium is reached.
Learn that enzymes lower the activation energy of a reaction, which is the energy barrier that must be overcome for reactants to be converted into products.
Activation energy is the minimum energy required for a chemical reaction to occur. Enzymes provide an alternative pathway with a lower activation energy.
By lowering the activation energy, enzymes increase the reaction rate, allowing the reaction to proceed faster under the same conditions.
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