Moderate

An inhibitor is added, disrupting the function of a particular enzyme. The experimenter adds more substrate, and enzyme function increases again. These results indicate the involvement of what type of inhibitor?

Correct answer: D. Competitive inhibition

  • A. Non-competitive
  • B. Un-competitive
  • C. Allosteric Enzyme
  • D. Competitive inhibition

Explanation

Correct answer is option D.A type of enzyme inhibition in which enzyme activity is blocked by the presence of a chemical that competes with the substrate for binding to the active site is called Competitive inhibition. It disrupts the function of enzyme not letting the substrate attach to the active site.

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Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.

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