Body & Soul1 min ago
Answers
Best Answer
No best answer has yet been selected by elemenope. Once a best answer has been selected, it will be shown here.
For more on marking an answer as the "Best Answer", please visit our FAQ.it because in the reactions they contain something called active sites where only a certain substrate can take on the position in this active site...you can read more bout it here n see in the video
http://en.wikipedia.org/wiki/Active_site
http://en.wikipedia.org/wiki/Active_site