What is the primary function of plasma proteins such as globulins?

The primary function of plasma proteins such as globulins is to combat infection. Globulins are a group of proteins in the blood plasma that play a crucial role in the immune system. They include antibodies, which are specifically designed to identify and neutralize pathogens like bacteria and viruses. By binding to these foreign invaders, globulins facilitate their removal from the body, thus providing protection against infections.

While it’s true that plasma proteins also participate in various other functions such as transporting nutrients and waste, maintaining blood pH, and regulating blood pressure, these roles are more closely associated with different categories of plasma proteins or components of blood. For instance, albumin primarily aids in maintaining osmotic pressure and transporting substances like fatty acids, while fibrinogen is involved in clotting processes. However, globulins are specifically recognized for their immunological functions.