What is a protein that would be found in blood plasma?

In the context of proteins found in blood plasma, albumin is a key component. It is the most abundant protein in blood plasma and plays several critical roles, including maintaining oncotic pressure, which helps retain fluid within the bloodstream and supports proper blood volume and pressure. Albumin also serves as a carrier for various substances such as hormones, vitamins, and drugs, facilitating their transport through the circulatory system.

Globulins are also present in plasma and play important roles in immune function and transporting substances, but they are not as predominant as albumin in terms of concentration. Fibrinogen is essential for blood clotting and is converted into fibrin during the coagulation process. Hemoglobin, while crucial for oxygen transport, is primarily found in red blood cells, not in plasma. Therefore, albumin stands out as the most abundant and significant protein specifically within blood plasma itself.