GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Enzymes are not reactants and are not used up during the reaction. Once an enzyme binds to a substrate and catalyzes the reaction, the enzyme is released, unchanged, and can be used for another reaction.
Detailed explanation-2: -The enzyme is not destroyed during the reaction and is used over and over. A cell contains thousands of different types of enzyme molecules, each specific to a particular chemical reaction.
Detailed explanation-3: -The statement is True. The statement is correct because enzymes significantly enhance the speed of chemical reactions and thus bind with the substrate or reactant molecules to form the product. They serve as biological catalysts that typically reduce the activation energy so that the product can be formed faster.
Detailed explanation-4: -True or false, An enzyme speeds up a chemical reaction in the cell, but can only be used once. False.