The interaction of carbon dioxide and water is one of the most important reactions in all of science, given that it explains the natural acidity of water and all accompanying reactions. (sciencedaily.com)
Your body can't function at an optimal level if you are always sleep deprived because many important reactions happen to our bodies when you are asleep. (personaltrainermtkisco.com)
There are hundreds or millions of copies of each different type of enzyme, depending on how important a reaction is to a cell and how often the reaction is needed. (science.howstuffworks.com)