Prosthetic Groups and Coenzymes
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Questions and Answers

Which type of organic compounds have a transient association with the apoenzyme during catalysis?

  • Metal ions
  • Vitamins
  • Co-enzymes (correct)
  • Prosthetic groups

Which vitamin is a component of the coenzyme nicotinamide adenine dinucleotide (NAD) and NADP?

  • Niacin (correct)
  • Vitamin B6
  • Vitamin C
  • Vitamin B12

Which type of organic compounds are tightly bound to the apoenzyme as prosthetic groups?

  • Co-enzymes
  • Haem (correct)
  • Metal ions
  • Vitamins

Which metal ion serves as a cofactor for the proteolytic enzyme carboxypeptidase?

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

Which enzymes catalyze the breakdown of hydrogen peroxide to water and oxygen?

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

Which of the following is a major difference between enzyme catalysts and inorganic catalysts?

<p>Enzyme catalysts get damaged at high temperatures (C)</p> Signup and view all the answers

At what temperature do enzymes start getting damaged?

<p>Above 40°C (C)</p> Signup and view all the answers

Which type of enzymes are stable and retain their catalytic power even at high temperatures?

<p>Enzymes isolated from organisms living in hot environments (C)</p> Signup and view all the answers

What is an important quality of enzymes isolated from thermophilic organisms?

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

What is the temperature range at which enzymes isolated from thermophilic organisms retain their catalytic power?

<p>Upto 90°C (A)</p> Signup and view all the answers

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