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Home/ Questions/Which of the following statements about the active site of an enzyme is correct?
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kttutoria
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kttutoriaExpert
Asked: April 9, 20222022-04-09T03:26:35+00:00 2022-04-09T03:26:35+00:00In: Biology

Which of the following statements about the active site of an enzyme is correct?

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Which of the following statements about the active site of an enzyme is correct?

  • A. The active site of an enzyme binds the substrate of the reaction it catalyzes with lower Kd than it does the transition state intermediate
  • B. The active site of an enzyme binds the substrate and transition state with equal Ka
  • C. The active site of an enzyme binds the product of the reaction it catalyzes higher Ka than it does the transition state intermediate D. The active site of an enzyme is complementary to the substrate of the reaction it catalyzes
  • E. The active site of an enzyme binds the substrate of the reaction it catalyzes with higher Kd than it does the transition state

♦ Relevant knowledge
Structure:

Proteins are the main components of enzymes. Some enzymes also contain components that bind with proteins.

An enzyme’s active center is a unique spatial structure that binds with a substrate and catalyzes biological reactions.

Mechanism of action

At the active site, the enzyme-substrate combination forms.

To produce products, enzymes interact with substrates.

Each enzyme can only catalyze one type of biochemical process.

The enzyme first binds to the substrate at its specific activity center. This creates an intermediate compound (enzyme-substrat) that is compatible with the enzyme. React with the substrate. At the end of the reaction, the compound will be broken down to produce an enzyme that can catalyze a reaction with another substrate of the same type.

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    kttutoria Expert
    2022-04-09T03:38:08+00:00Added an answer on April 9, 2022 at 3:38 am

    The correct answer is E.

    Because: enzymes-protein molecules -increase the rate of the reaction

    activation energy – minimally required to form the reaction

    substrate -> product

    enzyme decrease A.E, active site

    enzyme active site binds to in substrate with high Kd

    Kd is eqilibrinum dissociation constant

    Higher Kd means binding is less strong.

    Lower Kd means strong the bonding.

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