a student uses the unduiluted glucose stock solution in a reaction and finds that the absorbance values over 90 seceonds are all 1.900. What does this result tell you abou the enzyme activity of glucose oxidase in this reaction after the 90 seconds time point?

Would it be because it's not a dulited solution that it has a high concentration and that means faster absorbution?

The absorbance value of 1.900 tells us about the concentration of the glucose oxidase reaction product, which is being measured in this experiment. Absorbance is directly proportional to the concentration of a substance in a solution.

In this case, a high absorbance value of 1.900 suggests a high concentration of the reaction product. Therefore, it indicates that the enzyme activity of glucose oxidase is significant at the 90-second time point.

However, it's important to note that the concentration of the glucose stock solution used in this experiment is undiluted. The undiluted solution has a high concentration of glucose molecules, not glucose oxidase. The enzyme activity is determined by the effectiveness of glucose oxidase in converting glucose to the reaction product, not just the initial concentration of glucose.

To assess enzyme activity accurately, it would be necessary to compare the absorbance values with the reaction progress over time, such as by monitoring the absorbance at different time intervals. A steady increase or decrease in absorbance over time would provide more insight into the enzyme activity and its kinetics.