An experiment designed to study fermentation might aim to answer questions such as: "How do different substrates affect the rate of fermentation and the production of energy?"
Specifically, the experiment could investigate how the flow of matter in the form of glucose or other carbohydrates is converted into energy (ATP) and fermentation byproducts (such as ethanol or lactic acid) by microorganisms like yeast or bacteria.
Additionally, it could help elucidate the efficiency of energy conversion in fermentation processes and how various environmental factors (like temperature, pH, and oxygen availability) influence the flow and transformation of matter and energy during fermentation.
Overall, the experiment could reveal important insights into metabolic pathways, energy yield, and the ecological implications of fermentation processes.