Enzyme Catalysis Quiz

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Questions and Answers

What is the role of enzymes as biological catalysts?

  • They permit reactions to occur only at extreme conditions and process few molecules every second
  • They permit reactions to occur at body conditions and process few molecules every second
  • They permit reactions to occur at body conditions and process millions of molecules every second (correct)
  • They inhibit reactions to occur at body conditions and process millions of molecules every second

What is the effect of enzymes on activation energy (Ea) in a reaction?

  • Enzymes increase the activation energy, making the reaction slower
  • Enzymes stabilize the activation energy, keeping the reaction constant
  • Enzymes have no effect on activation energy
  • Enzymes reduce the activation energy, making the reaction faster (correct)

What are the two basic components of an enzyme's active site?

  • Allosteric site and regulatory site
  • Substrate site and product site
  • Catalytic site and binding site (correct)
  • Inhibitory site and stabilizing site

Which type of enzyme catalyzes hydrolysis reactions?

<p>Hydrolase (A)</p> Signup and view all the answers

At what pH do enzymes typically operate?

<p>$pH$ 7.4 (B)</p> Signup and view all the answers

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