Enzyme introduction

• What is an enzyme?

  Biological catalyst
• How do enzymes affect metabolic reactions?

  They speed up metabolic reactions
• What is the effect of enzyme action on cells, tissues, and organs?

  It affects both structure and function
• Are enzymes used up in reactions?

  No, they are not used up
• What role do enzymes play in collagen production?

  They are involved in the production of collagen
• What is one function of enzymes in respiration?

  They are involved in respiration
• What type of proteins are enzymes classified as?

  Globular proteins
• What is the shape of an enzyme?

  3D shape almost spherical
• Why are enzymes soluble in water?

  Due to the position of hydrophilic R groups
• What is an active site of an enzyme?

  Specific shape where substrate binds
• How large is the functional part of an enzyme molecule?

  Only a small part is functional
• What is the composition of the active site?

  Made up of a small number of amino acids
• What does the active site form in the enzyme's 3D structure?

  A hollow complementary shape to a substrate
• What forms between the enzyme and substrate molecule?

  Temporary bonds form
• What are the key characteristics of enzymes?

  • Biological catalysts
  • Speed up metabolic reactions
  • Not used up in reactions
  • Involved in collagen production and respiration
  • Globular proteins with a specific 3D shape
  • Contain an active site for substrate binding