A new business is taking over space formerly occupied by a discount supermarket on the Black Horse Pike in Egg Harbor Township and they deal with blood -- or, more specifically, plasma. Taking over the old Save A Lot store in the Cardiff Plaza Shopping Center is Biolife Plasma Services. Get our free mobile app Before we dive into what this company does, let's first talk about plasma. It's defined as, "...the largest part of your blood. ... The main role of plasma is to take nutrients, hormones, and proteins to the parts of the body that need it. Cells also put their waste products into the plasma. The plasma then helps remove this waste from the body. Blood plasma also carries all parts of the blood through your circulatory system."