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:)
Answer:
Okay just think about the question and what it's asking you. Don't overthink it. If you're still confused i'll put the answer in the comments
Explanation:
By definition: Facilitated diffusion<span> is the process of spontaneous passive transport of molecules or ions across a cell's membrane via specific transmembrane integral proteins.~Google
An example, the only I can really think of:
Polar and large molecules normally can't cross the lipid bi layer using simple diffusion, it usually has to be </span>Facilitated diffusion
All of them regulate body processes
Nutrients are carbohydrates,protein,fat,water,minerals,vitamins