Fermentation with Yeast

Experiment #11 from Investigating Biology through Inquiry

In this Preliminary Activity, you will use a Gas Pressure Sensor to monitor the pressure inside a conical tube as yeast metabolizes glucose anaerobically. When data collection is complete, you will perform a linear fit on the resultant graph to determine the fermentation rate.

After completing the Preliminary Activity, you will first use reference sources to find out more about sugar fermentation by yeast before you choose and investigate a researchable question dealing with fermentation. Some topics to consider in your reference search are:

• sugars
  
• glucose
  
• monosaccharides
  
• disaccharides
  
• fermentation
  
• anaerobic respiration
  
• aerobic respiration
  
• yeast
  
• enzyme
  
• substrate
  
• enzyme inhibitor
  

Aerobic Respiration

Experiment #17 from Biology with Vernier

In this experiment, you will

• Measure changes in dissolved oxygen concentration.
• Study the effect of temperature on cellular respiration.
• Make a plot of the rate of cellular respiration as a function of temperature.