Study Question Two

• Q2. Describe the function of each of the 3 major proteins in the blood.
• Three major proteins in the blood

  • albumin
  • globulin
  • fibrinogen
• • albumin
  • Most abundant protein in plasma. Maintains oncotic pressure to keep the balance of fluids between blood vessels and surrounding tissues, preventing fluid from leaking out.
  • Binds and transports substances in blood, such as fatty acids, hormones, vitamins, and drugs.
  • Acts as a buffer to maintain blood's pH level by binding to excess hydrogen ions.
• • globulins
  • A diverse group of proteins that include antibodies (immunoglobulins) and transport proteins.
  • Alpha globulins transport proteins.
  • Beta globulins include proteins like transferrin (transports iron) and complement proteins (involved in immune responses).
  • Gamma globulins are antibodies (immunoglobulins) produced by B cells, and are key in the immune system.
• • fibrinogen
  • A soluble plasma protein that is converted into fibrin during blood clotting.
  • Fibrin forms a mesh-like structure that helps trap blood cells and platelets, leading to a blood clot.
• Describe the function of each of the 3 major proteins in the blood.

  Albumin maintains blood volume and osmotic pressure; transports substances like fatty acids, hormones, and vitamins; and acts as a buffer to maintain the blood's pH level.

  Globulins are primarily for immune defense as immunoglobins and gamma globulins, and transport substances as alpha and beta globulins.

  Fibrinogens are a plasma protein that create fibrin for blood clotting to prevent blood loss.