shelbyp2003
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Which action must occur for an enzyme to catalyze a chemical reaction?

A. A noncompetitive inhibitor must first bind to an active site.

B. A competitive inhibitor must first bind to an active site.

C. A substrate must bind to an allosteric site of the enzyme.

D. A substrate must bind to an active site of the enzyme.

Respuesta :

  • For an enzyme to catalyze a chemical reaction it is very essential for the correct substrate to bind to the active site of the enzyme.
  • The active site is divided into two portions :
  1. Binding site
  2. Catalytic site
  • The binding site is made up of amino acid residues that are responsible for binding to the correct substrate while the catalytic site possesses the amino acids that lead to the catalysis.
  • The shape of the active site is such that only the correct substrate binds to it easily and hence, the catalytic reaction takes place.

A complex big molecule that fastens the metabolic reactions without actually participating in it is called an enzyme. They fasten the formation and breakdown of the metabolic and catabolic reactions.

The actions that are required in a chemical reaction is:

Option: D. Active site of an enzyme must be attached to a substrate.

This can be explained as:

  • If a non-competitive binds to the active site then the substrate would not be able to bind to the site and a chemical reaction would not occur.

  • If in the second option a competitive bind to the active site it will block the substrate to bind on the active site of the enzyme and the complex would not be able to form.

  • If a substrate binds to an allosteric site then it will inhibit or activate the enzyme.

Therefore, the enzyme can catalyze chemical reactions when the substrate binds to the active site.

To learn more about active sites and substrate follow the link:

https://brainly.com/question/410903

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