BIOLOGY
ENZYMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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catalyst higher activation energy and speed up reactions.
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catalyst lower activation energy and slow down reactions.
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catalyst lower activation energy and speed up reactions.
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catalyst higher activation energy and slow down reactions.
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Detailed explanation-1: -A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.
Detailed explanation-2: -A substance that speeds up a chemical reaction-without being a reactant-is called a catalyst. The catalysts for biochemical reactions that happen in living organisms are called enzymes. Enzymes are usually proteins, though some ribonucleic acid (RNA) molecules act as enzymes too.
Detailed explanation-3: -Catalysts make this process more efficient by lowering the activation energy, which is the energy barrier that must be surmounted for a chemical reaction to occur. As a result, catalysts make it easier for atoms to break and form chemical bonds to produce new combinations and new substances.
Detailed explanation-4: -Enzymes are proteins that lower the activation energy of chemical reactions. Enzymes that are found in our body made of proteins and are called biological catalysts.
Detailed explanation-5: -By altering the reaction’s transition state, a catalyst lowers the activation energy. After that, the reaction follows a different mechanism than the uncatalyzed reaction.