CELL STRUCTURES AND FUNCTION
BIO MOLECULES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which best describes how enzymes function in the body?
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Enzymes are converted into products by the reactions they catalyze.
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Enzymes lower the activation energy of reactions.
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One enzyme can catalyze many different reactions.
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An enzyme is used once and then destroyed by the cell.
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Explanation:
Detailed explanation-1: -Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.
Detailed explanation-2: -Enzymes generally lower activation energy by reducing the energy needed for reactants to come together and react. For example: Enzymes bring reactants together so they don’t have to expend energy moving about until they collide at random.
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