객관식
During each step of a metabolic pathway, a separate ______ is needed to catalyze the reaction.
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6. Enzymes and Enzyme Kinetics
Enzymes
객관식
Enzymes catalyze reactions by __________.
A
changing the equilibrium constant of the reaction
B
providing energy for the reaction
C
increasing the temperature of the reaction
D
lowering the activation energy of the reaction
검증된 단계별 안내1
Understand the role of enzymes in biochemical reactions: Enzymes are biological catalysts that speed up reactions without being consumed in the process.
Recall the concept of activation energy: Activation energy is the minimum energy required for reactants to transform into products during a chemical reaction.
Recognize how enzymes function: Enzymes lower the activation energy by stabilizing the transition state, making it easier for the reaction to proceed.
Clarify what enzymes do not do: Enzymes do not change the equilibrium constant, provide energy for the reaction, or increase the temperature of the reaction. They only affect the rate of the reaction by lowering the activation energy.
Conclude that the correct answer is 'lowering the activation energy of the reaction,' as this is the primary mechanism by which enzymes catalyze reactions.
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