Which of the following agranulocytes is primarily responsible for antibody production in the adaptive immune system?

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

Answer: (B)

Verified step by step guidance

1. Step 1: Understand the types of agranulocytes involved in the immune system. Agranulocytes are white blood cells without visible granules and include lymphocytes and monocytes.
2. Step 2: Identify the main types of lymphocytes: B cells and T cells. B cells are responsible for producing antibodies, while T cells have other roles such as killing infected cells or helping other immune cells.
3. Step 3: Recognize that basophils, eosinophils, and neutrophils are granulocytes, not agranulocytes, and they have different functions such as inflammation and fighting parasites.
4. Step 4: Recall that antibody production is a key function of the adaptive immune system, and B cells are the primary agranulocytes that differentiate into plasma cells to secrete antibodies.
5. Step 5: Conclude that among the options given, B cells are the agranulocytes primarily responsible for antibody production in the adaptive immune system.