BIOLOGY
PROTEINS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Enzymes increase the energy required for a reaction to occur.
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Enzymes decrease the energy required for a reaction to occur.
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Enzymes have no affect on the energy required for a reaction to occur.
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Enzymes maintain the energy needed for a reaction to occur.
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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 in our bodies are catalysts that speed up reactions by helping to lower the activation energy needed to start a reaction.
Detailed explanation-3: -By binding reactants at the active site, enzymes also position reactants correctly, so they do not have to overcome intermolecular forces that would otherwise push them apart. This allows the molecules to interact with less energy.
Detailed explanation-4: -After the reaction, the products are released from the enzyme’s active site. This frees up the enzyme so it can catalyze additional reactions. The activities of enzymes also depend on the temperature, ionic conditions, and the pH of the surroundings.