The two major groups of white blood cells are ________.

Question

Quizplus · Accepted Answer

The two major groups of white blood cells are granulocytes and agranulocytes. Leukocytes (white blood cells) include both granulocytes, which have granules in their cytoplasm, and agranulocytes, which do not have granules. Option A is incorrect because erythrocytes are not white blood cells, they are red blood cells. Option B is incorrect because platelets are not white blood cells, they are small cell fragments involved in blood clotting, and megakaryocytes are the precursor cells that produce platelets. Option C is incorrect because neutrophils and basophils are types of granulocytes, not the two major groups of white blood cells. Option E is incorrect because granulocytes are a subset of leukocytes, not a separate major group.

The Two Major Groups of White Blood Cells Are ________