OBJECTIVE LIFE SCIENCE
BIOCHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the enzyme is a substrate
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the charge on the enzyme’s active site is the same as the charge on the substrates.
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the enzyme is one of the reactants in the reaction
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the shape of the substrates fits perfectly into the shape of the enzyme’s active site.
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Detailed explanation-1: -Enzymes perform the critical task of lowering a reaction’s activation energy-that is, the amount of energy that must be put in for the reaction to begin. Enzymes work by binding to reactant molecules and holding them in such a way that the chemical bond-breaking and bond-forming processes take place more readily.
Detailed explanation-2: -Each enzyme molecule has a special place called the active site where another molecule, called the substrate, fits. The substrate goes through a chemical reaction and changes into a new molecule called the product-sort of like when a key goes into a lock and the lock opens.
Detailed explanation-3: -The active site is usually a groove or pocket of the enzyme which can be located in a deep tunnel within the enzyme, or between the interfaces of multimeric enzymes.
Detailed explanation-4: -If the shape changes, the enzyme can no longer work. Enzyme shape can be affected by changes in temperature or pH. Enzymes are called catalysts because they make the chemical reactions occur faster.