Multiple Choice
What is the substance that helps speed up biochemical reactions without being consumed in the process?
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31. Catalysis in Organic Reactions
Introduction to Catalysis
Multiple Choice
In the context of biological systems, why are enzymes crucial for chemical reactions?
A
Enzymes decrease the , speeding up reactions.
B
Enzymes are consumed in the reactions they catalyze.
C
Enzymes increase the required for reactions.
D
Enzymes change the equilibrium position of reactions.
Verified step by step guidance1
Understand the role of enzymes: Enzymes are biological catalysts that speed up chemical reactions in biological systems without being consumed in the process.
Identify the effect of enzymes on activation energy: Enzymes work by lowering the activation energy required for a reaction to proceed, making it easier for the reaction to occur.
Clarify the misconception about enzyme consumption: Enzymes are not consumed in the reactions they catalyze; they remain unchanged and can be used repeatedly.
Examine the impact on reaction equilibrium: Enzymes do not change the equilibrium position of a reaction; they only speed up the rate at which equilibrium is reached.
Summarize the key points: Enzymes are crucial because they lower activation energy, increase reaction rates, and are not consumed, without altering the equilibrium position.
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