Both carbon monoxide and oxygen bind at the same active site in hemoglobin. However, carbon monoxide binds stronger than oxygen, and thus, effectively prevents hemoglobin from transporting oxygen to cells. How is the carbon monoxide acting in this process? The experiment with rennin simulates the environment in the stomach. a. How would the digestion of milk in the stomach be influenced by concentration pH? b. Why was the experiment carried out at 35-40 degree C? c Based on your observations in the experiment carried out at different temperatures, how effective would rennin be at 0 degree C and at 100 degree C? Explain. Refrigeration prevents the spoilage of food. What does this action have to do with the way that enzymes work? Below is a graph that shows the behavior of an enzyme at various pH values. What is the maximum value called? At what pH value is the enzyme expected to work the best?