A. It stores energy until a Call needs it.
The substrate and the active site both need to fit together perfectly in order for the enzyme to work properly. If their shape is changed, typically through heat or a change in pH, the enzyme will not work.
A. Moisten and filters incoming air
The largest sinus cavity is B. Maxillary Sinus
About 10% because I know about 90-95% of DNA is junk DNA(doesnt perform serious function)
