Enzymes

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Questions and Answers

What is the primary role of enzymes?

  • To consume activation energy
  • To change the nature of chemical reactions
  • To slow down chemical reactions
  • To speed up chemical reactions (correct)

What is the tertiary structure of most enzymes?

  • Helical
  • Sheet-like
  • Globular (correct)
  • Fibrous

How do enzymes affect the activation energy of a reaction?

  • Neutralize it
  • Have no effect on it
  • Lower it (correct)
  • Increase it

What happens to enzymes after catalyzing a reaction?

<p>They are not consumed and are reusable (B)</p> Signup and view all the answers

What role do enzymes play in metabolism?

<p>Speeding up metabolic reactions (A)</p> Signup and view all the answers

What is the primary role of enzymes?

<p>Speeding up biochemical reactions (B)</p> Signup and view all the answers

What is the tertiary structure of most enzymes?

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

What effect do enzymes have on the activation energy of a reaction?

<p>Lower it (B)</p> Signup and view all the answers

What happens to enzymes after catalyzing a reaction?

<p>They are not consumed and are reusable (A)</p> Signup and view all the answers

What factor can enzymes increase the rate of a reaction by over uncatalyzed reactions?

<p>Up to 10^20 (D)</p> Signup and view all the answers

What is the primary function of enzymes in the body?

<p>To catalyze chemical reactions (A)</p> Signup and view all the answers

What is the tertiary structure of most enzymes?

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

How do enzymes affect the activation energy of a reaction?

<p>Lower the activation energy (A)</p> Signup and view all the answers

What happens to enzymes after catalyzing a reaction?

<p>They are not consumed and can be reused (A)</p> Signup and view all the answers

What role do enzymes play in metabolism?

<p>Speed up metabolic reactions (A)</p> Signup and view all the answers

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