Factors that affect enzymes

• What factors are being examined in relation to enzyme activity?

  Temperature and pH
• How does temperature affect the rate of enzyme-controlled reactions?

  Higher temperature increases reaction rate initially
• Why does the rate of reaction increase with temperature initially?

  Particles have more kinetic energy and collide more
• What happens to the rate of reaction after about 37°C?

  The rate starts to drop rapidly
• Why does the rate of reaction drop at high temperatures?

  High temperatures break bonds in enzymes
• At what temperature does enzyme denaturation occur in this context?

  Around 45°C
• What is the optimum temperature for enzyme activity mentioned in the video?

  37°C
• Do different enzymes have the same optimal temperature?

  No, different enzymes have different optimal temperatures
• What does pH measure?

  Acidity
• What happens to the enzyme's active site when pH changes?

  It starts to change shape
• How does pH affect enzyme activity?

  Extreme pH lowers the rate of reaction
• What is the optimal pH for most enzymes in the human body?

  Around 7 (neutral)
• What is the optimal pH for enzymes that work in the stomach?

  Around 2
• What are the effects of temperature and pH on enzymes?

  • Temperature increases reaction rate until denaturation
  • Optimal temperature is around 37°C
  • pH affects enzyme shape and activity
  • Optimal pH varies; around 7 for most enzymes, around 2 for stomach enzymes
• What is the term for when an enzyme can no longer catalyze a reaction?

  Denatured
• What happens to the substrate when the enzyme is denatured?

  The substrate can't fit into the active site
• What does the learning platform offer according to the video?

  Videos, practice questions, and progress tracking
• Where can you find the link to the lesson for this video?

  In the description down below
• How are the videos for this subject organized?

  In a playlist