Question

Heparin is secreted by

• A. Neutrophils
• B. Eosinophils
• C. Basophils
• D. Platelets

Hint:

Basophils release histamine and heparin; heparin acts as an anticoagulant.

Answer 1

The Correct Option is C

Concept:
White blood cells have different functions in immunity, allergy, inflammation, and defense.

Step 1: Understanding basophils.
Basophils are granulocytic white blood cells. Their granules contain biologically active substances.

Step 2: Substances released by basophils.
Basophils release histamine and heparin. Histamine is involved in allergic reactions, while heparin acts as an anticoagulant.

Step 3: Function of heparin.
Heparin prevents blood clotting by inhibiting clot formation.

Step 4: Checking other options.
Neutrophils are mainly phagocytic.
Eosinophils are involved in allergy and parasitic infections.
Platelets help in clot formation.
Basophils secrete heparin. \[ \boxed{\text{Basophils}} \]