Hormones. So hormones are those biological molecules that travel inside our blood from one point to a different point in the body. And they are basically used to regulate many different types of processes. Two examples of hormones is ADH, the antidiatic hormone and aldosterone. So these are the major constituents that are found in the blood plasma. Now, we can conclude that the blood plasma functions as a fluidlike matrix that is responsible for moving, for transporting different types of substances, nutrients, waste products, minerals, vitamins and so forth, from one point in the body to a different point of the body.