How Is A Respirometer Used To Measure Fermentation

Question: Sports physiologists at an Olympic training center wanted to monitor athletes to determine at what point their muscles were functioning anaerobically. They could do this by checking for the buildup of which molecule?

Answer: Lactate

Question: Which carbohydrate is the primary or preferred starting compound for glycolysis and the fermentation pathway?

Answer: Glucose

Question: What anaerobic pathway in cellular respiration generates ATP from the breakdown of glucose?

Answer: Glycolysis

Question: Respirometers were set up that contained yeast and 2% glucose solution. Each respirometer was placed at a different temperature. The height of the bubble contained in the respirometer was measured every 5 minutes for 20 minutes. What is the independent variable in this experiment?

Answer: Temperature

Question: In the yeast fermentation experiment, what is being produced to cause the air bubble at the top of the tube to increase over time?

Answer: CO2

Question: A device that can be used to measure the rate of exchange of oxygen and carbon dioxide during energy-acquiring pathways is called a:

Answer: Respirometer

Question: All carbohydrates must be converted to glucose to enter glycolysis or fermentation.

Answer: True

Question: How is a respirometer used to measure fermentation?

Answer: By the size of the gas bubble produced.

Question: Using the respirometer, how can you determine which carbohydrate is used most efficiently by yeast for fermentation?

Answer: The solution in the tube with the largest gas bubble has fermented most efficiently.

Question: A process common to all living organisms, whether aerobic or anaerobic, is:

Answer: Pyruvate oxidation