A wholesaler can act as a middleman, brokering deals between these businesses. The sale and distribution of goods to users other than end consumers. Wholesaling involves selling merchandise to retailers, wholesalers and merchants, or to industrial, commercial and institutional users. A wholesaler can act as a middleman, brokering deals between these businesses.
Hemoglobin, which carries iron, gives red blood cells their color. Iron, a mineral you ingest in food, plays a vital role in transporting oxygen to tissues throughout your body. Although iron has other functions as well, acting as an oxygen delivery system is its best-known function.
Iron in Your Body. The majority of your bodyâs iron is found in hemoglobin, the part of red blood cells that carries oxygen for delivery to your cells. Hemoglobin is a highly complex molecule that has one atom of iron at its center. That one atom is what gives blood its red coloring.