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Which of the statements is a correct description of the role of enzymes in catalyzing biochemical reactions?
a. Enzymes provide the necessary activation energy to reach the transition state.
b. Enzymes decrease the ΔG of reactions, making them proceed rapidly.
c. Enzymes increase the ΔG of reactions, making them proceed rapidly.
d. Enzymes stabilize the transition state and decrease its free energy.

Respuesta :

Enzymes stabilize the transition state and decrease its free energy is correct statement.

  • Enzymes form bonds with one or more reactants and reduce the reaction's activation energy need.
  • The function of enzymes is to lower the amount of activation energy required for a reaction to occur. It is well known that enzymes are the ones that accelerate a biological reaction.
  • Temperature increases speed up the activities of enzymes. Since nearly all enzymes are capable of functioning in cells, moderate temperatures are the ideal environment for them.  
  • Denaturation of enzymes causes a sharp decline in activity at higher temperatures.
  • Compared to enzymes in crude extracts, purified enzymes denature more quickly in diluted solutions.
  • Enzymes can also become denaturized when they are incubated for extended periods of time.
  • When determining the beginning velocities of such enzyme processes, it is more suitable to use a shorter incubation time.

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