What is the primary function of alpha-2 macroglobulin in the context of blood components?

A To regulate the activity of proteases in the blood ✓
B To transport lipids and fat-soluble vitamins
C To facilitate the removal of antibody-antigen complexes
D To inhibit the activity of certain enzymes

Explanation

Alpha-2 macroglobulin is a protein that regulates the activity of proteases in the blood, helping to prevent excessive proteolysis and maintain tissue integrity.

Source

Guyton and Hall Textbook of Medical Physiology
Hematology Hematology: Blood Components Hematology: Blood Components Medium MEDICAL Confidence: high