Albumin, globulin and fibrogin are the three major types of plasma proteins. Plasma is the fluid portion of blood that supplies nutrients to tissues. Plant seeds contain albumin and globulin but no fibrogin. Albumin is the nutritive material that fills the space in the seed between the embryo and the seed coat. The embryo needs albumin to fuel its initial growth until photosynthesis begins.
Globulin is the third most abundant protein in the human body.
More importantly, they are responsible for both the natural and acquired immunity a person has against invading organisms. Globulins like gamma globulin are absolutely essential to maintain a healthy immune system. Alpha and beta globulins operate as transport vehicles by combining with other substances and carry protein from one part of the body to another. They haul the materials needed to build new and replace worn or damaged bodily structures. Gamma globulins are divided into five classes of antibodies called immunoglobulins.