Multiple Choice
Which of the following statements best helps explain the reaction specificity of an enzyme?
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6. Enzymes and Enzyme Kinetics
Enzyme-Substrate Complex
Multiple Choice
In the context of the enzyme-substrate complex, what term describes a specific reactant acted upon by an enzyme?
A
Cofactor
B
Product
C
Allosteric inhibitor
D
Substrate
Verified step by step guidance1
Understand that enzymes are biological catalysts that speed up chemical reactions by binding to specific molecules.
Identify that the molecule upon which an enzyme acts is called the 'substrate'. This is the specific reactant that fits into the enzyme's active site.
Recognize that a 'cofactor' is a non-protein molecule or ion required for enzyme activity, but it is not the reactant itself.
Know that the 'product' is the molecule formed after the enzyme acts on the substrate, so it is the result, not the starting reactant.
Understand that an 'allosteric inhibitor' is a molecule that binds to a site other than the active site to decrease enzyme activity, not the reactant acted upon.
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