The correct answer is...Once the enzyme binds to the specific substrate molecule, subtle structure changes occur in the active site, which are reverted when the reaction is over.
Hope this helps:)
The nervous system, i could be wrong.
Sensory nerve endings in the fingers include Meisnner's corpuscles, Pacinian corpuscles, free nerve endings, Merkel discs, and Ruffini endings.
Http://www.flashcardmachine.com/nutrition-exam33.html
This I think definitely will help :)
<span>Polyploid plants are usually stronger and better</span>