Q. Mast cells secrete :
A) hippurin
B) myoglobin
C) histamine
D) haemoglobin
Explanation
[Solution from source] Mast cells of connective tissue release histamine (and heparin, serotonin) during inflammation and allergy. Haemoglobin and myoglobin are oxygen-binding proteins of RBCs and muscle, not secretions. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.