Enzymes: Catalysts in Biochemical Reactions
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Questions and Answers

What is the main function of enzymes?

  • To function as proteins
  • To act as catalysts (correct)
  • To be consumed in biochemical reactions
  • To undergo denaturation reactions

Which type of enzyme is composed only of protein?

  • Coenzyme
  • Simple enzyme (correct)
  • Conjugated enzyme
  • Apoenzyme

What is the function of an oxidoreductase enzyme?

  • Oxidation–reduction reaction (correct)
  • Hydrolysis reaction
  • Transfer of a functional group
  • Addition of a water molecule

What is the function of a cofactor in an enzyme?

<p>Provide additional chemical reactivity (C)</p> Signup and view all the answers

What type of reaction does a hydrolase enzyme catalyze?

<p>Hydrolysis reaction (D)</p> Signup and view all the answers

Which ion is considered a typical metal ion cofactor for enzymes?

<p>Zn2+ (B)</p> Signup and view all the answers

Which enzyme class catalyzes the removal of hydrogen from lactate ion?

<p>Oxidoreductase (C)</p> Signup and view all the answers

How are coenzymes or co-substrates related to dietary vitamins?

<p>They are derived from dietary vitamins (C)</p> Signup and view all the answers

What is the function of a transferase enzyme?

<p>Transfer of a functional group (B)</p> Signup and view all the answers

What determines the nomenclature used for enzymes?

<p>The function and substrate specificity of the enzyme (A)</p> Signup and view all the answers

Which enzyme type catalyzes the addition/removal of groups to form double bonds without hydrolysis or oxidation?

<p>Lyases (C)</p> Signup and view all the answers

What is a common function of dehydratase and hydratase enzymes?

<p>Removal of components of water from double bonds (D)</p> Signup and view all the answers

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