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Enzyme Structure and Functioning

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Questions and Answers

What is the primary function of the active site in an enzyme?

To synthesize new enzymes
To break down reaction products
To bind to a specific substrate (correct)
To increase the activation energy of a reaction

What is the three-dimensional structure of the enzyme that determines its specificity?

The shape of the active site
The folding pattern of the protein (correct)
The chemical properties of the amino acids
The electrical properties of the cofactors

What is the role of the transition state in enzyme-catalyzed reactions?

It is the reactant that binds to the enzyme
It is the intermediate complex that requires less energy for the reaction to proceed (correct)
It is the enzyme itself
It is the final product of the reaction

Why do enzymes only bind to specific substrates?

Because of the three-dimensional structure of the active site (A) Signup and view all the answers

What is the purpose of the enzyme's active site?

To bind to a specific substrate (A) Signup and view all the answers

What determines the specificity of an enzyme?

The three-dimensional structure of the active site (D) Signup and view all the answers

What is the role of the amino acids in determining the enzyme's specificity?

They determine the chemical properties of the active site (C) Signup and view all the answers

What is the purpose of the cofactors in an enzyme?

To facilitate the binding of the substrate to the active site (D) Signup and view all the answers

What is the result of the enzyme-substrate interaction?

The formation of an intermediate complex (B) Signup and view all the answers

Why do enzymes not bind to all substrates?

Because of the three-dimensional structure of the active site (A) Signup and view all the answers

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