Question
Enzymes(a) speed up reactions that would otherwise occur much more slowly.(b) spur reactions that would otherwise never occur.(c) provide energy for anabolic but not catabolic pathways.(d) are consumed during the reactions they catalyze.
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Enzymes are proteins that act as catalysts in our bodies. They speed up the rate of chemical reactions, making them occur much more quickly than they would without the enzymes. Show more…
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Enzymes a. provide energy for anabolic but not catabolic pathways. b. are consumed during the reactions that they speed up. c. catalyze reactions that would otherwise never occur. d. catalyze reactions that would otherwise occur much more slowly.
Enzymes sometimes ________. (A) increase the amount of energy necessary to initiate a reaction. (B) increase the rate at which a reaction occurs. (C) catalyze reactions that release energy, but not those that consume energy. (D) are always consumed by catalyzing a reaction. (E) reduce the energy released by a reaction by one of four different mechanisms.
Enzymes increase the speed of a chemical reaction because they? A. increase the temperature to provide necessary boost of energy B. make the reaction more energetically favorable C. raise the activation energy needed to initiate a reaction D. make the reaction spontaneous E. none of the above is a correct choice
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