Final answer:
Albumin is the most abundant plasma protein, responsible for 54% of total plasma protein content. It acts as a transport molecule and helps maintain osmotic pressure. Globulins, the second most common group of plasma proteins, transport substances such as iron and lipids, and are involved in the immune response.
Step-by-step explanation:
Albumin is the most abundant plasma protein, accounting for approximately 54% of the total plasma protein content. It is a transport molecule that binds to fatty acids and steroid hormones in the blood, enabling their transport throughout the body. Additionally, albumin plays a crucial role in maintaining osmotic pressure, which helps to regulate blood volume and pressure.
Globulins are the second most common group of plasma proteins and can be further classified into three subgroups: alpha, beta, and gamma globulins. Alpha and beta globulins transport iron, lipids, and fat-soluble vitamins, and they also contribute to osmotic pressure. Gamma globulins, also known as immunoglobulins or antibodies, are involved in the immune response.