Question

Match the following lists.

List I		List II
A	Basophils	1	Phagocytosis
B	Neutrophils	2	Inflammation
C	Plasma cells	3	Blood clotting
D	Thrombocytes	4	Antibodies

• A. A- (2), B- (1), C-(4), D-(3)
• B. A-(2), B-(1), C-(3), D-(4)
• C. A-(1), B-(2), C-(4), D-(3)
• D. A-(4), B-(1), C-(2), D-(3)

Answer 1

Answer: (A)

Basophils are least numerous and stain with basic dyes like methylene blue. At the place of injury, basophils secrete vasoilators such as histamine, serotonin. Inflammation takes place at the site of injury. Neutrophils are most numerous and must be active type of WBCs. These corpuscles are actively motile and most actively phagocytic. Thrombocytes (blood platelets) occur only in mammals. Their 50% part is protein and 15% is fat. Protein mainly includes a contractile protien (thrombosthinin) similar to actomyosin of muscles. These play important role during blood clotting. Plasmablasts are precursor of plasma cells. The mature plasma cells produce gamma globulin antibodies at an extremely rapid rate about 2000 molecule per second.