Rate of Respiration

• Hydrogencarbonate indicator changes colour depending on the pH of the solution. When more carbon dioxide is dissolved in the solution, it becomes more acidic. When less carbon dioxide is dissolved in the solution, it becomes more alkaline.
• Demonstration of the production of carbon dioxide by yeast in anaerobic conditions

  
• Measurement of the rate of respiration by living material

  
• Demonstration that heat is given off by living material during respiration

  
• Describe other methods to measure the rate of respiration.