D. greenhouse gases is the answer
Answer:
The downward shift is a result of the carbon monoxide molecules binding to the heme group and preventing other oxygen molecules from binding to that same location.
Explanation:
Answer:
The answer is B, I believe, because it states here that, "Enzymes are highly selective catalysts, meaning that each enzyme only speeds up a specific reaction. ... The molecules that an enzyme works with are called substrates. The substrates bind to a region on the enzyme called the active site. There are two theories explaining the enzyme-substrate interaction."