If you want to set up a controlled experiment to determine the effects of caffeine on sleeping behavior in mice, you take a grou
p of mice and divide it into two groups. both are fed the same food, both are watered, both have 12 hours daylight, and 12 hours dark. group one is given caffeine. what is appropriate to give to group two
It is used when a product of the reaction is used for regulate the reaction. Therefore when there is enough product like ATP in this situtation, there is no need to run the reaction.