What is an active site and what is its relationship to an enzyme? an active site in an enzyme is the area that breaks the bond in its substrate. E.g. a maltose molecule's glycocide bond is broken by the active site in a maltase enzyme.
The caffeine in a cup of coffee might help your small blood vessels work better. Credit: Â© jogyx / Fotolia. The caffeine in a cup of coffee might help your small blood vessels work better, according to research presented at the American Heart Association's Scientific Sessions 2013.
LONG-TERM COFFEE DRINKING MAY PRODUCE A TOXIC LIVER. Because of the overload on the liver to detoxify chemical residues, long-term coffee drinkers often have a toxic, congested liver and impure blood. The function of the liver is to filter the blood so the blood can nourish the cells.