NEETZoologyBody Fluids and Circulation
Identify the most abundant agranulocyte and the least abundant granulocyte respectively from the options given below.
Options
- ANeutrophil and Basophil
- BLymphocyte and Basophil
- CMonocyte and Eosinophil
- DLymphocyte and Monocyte
Correct answer
B. Lymphocyte and Basophil
Step-by-step solution
Leukocytes (WBCs) are broadly grouped into two main categories: granulocytes and agranulocytes. Agranulocytes include lymphocytes and monocytes. Lymphocytes constitute 20-25 % of total WBCs, while monocytes constitute 6-8 % . Thus, the most abundant agranulocyte is the lymphocyte. Granulocytes include neutrophils, eosinophils, and basophils. Neutrophils are the most abundant ( 60-65 % ), eosinophils are 2-3 % , and basophils are the least abundant ( 0.5-1 % ). Thus, the least abundant granulocyte is the basophil. N