Multiple Choice
Which of the following reactions is most likely to cause a frameshift mutation in an organic molecule?
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3. Acids and Bases
Organic Chemistry Reactions
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Which of the following is changed in a reaction by the action of an enzyme?
A
Reaction enthalpy
B
Reaction stoichiometry
C
Equilibrium constant
D
Activation energy
Verified step by step guidance1
Understand that enzymes are biological catalysts that speed up chemical reactions without being consumed in the process.
Recognize that enzymes work by lowering the activation energy of a reaction, which is the energy barrier that must be overcome for the reaction to proceed.
Note that the reaction enthalpy, which is the overall energy change of the reaction, remains unchanged because enzymes do not alter the energy levels of the reactants or products.
Acknowledge that the reaction stoichiometry, which refers to the quantitative relationship between reactants and products, is also unchanged by the presence of an enzyme.
Understand that the equilibrium constant, which is determined by the relative energies of the reactants and products, is not affected by enzymes because they do not change the position of equilibrium; they only help the system reach equilibrium faster.
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