Which type of cells are responsible for secreting antibodies?

• A. T lymphocytes
• B. B lymphocytes
• C. Macrophages
• D. Neutrophils

Answer: (B)

Verified step by step guidance

1. Understand the role of antibodies: Antibodies are proteins that are crucial for the immune response, helping to identify and neutralize foreign objects like bacteria and viruses.
2. Identify the types of cells involved in the immune response: The main types of cells include T lymphocytes, B lymphocytes, macrophages, and neutrophils.
3. Learn the function of B lymphocytes: B lymphocytes, also known as B cells, are responsible for producing and secreting antibodies. They are a key component of the adaptive immune system.
4. Differentiate between T lymphocytes and B lymphocytes: T lymphocytes are primarily involved in cell-mediated immunity, whereas B lymphocytes are involved in humoral immunity, which includes antibody production.
5. Recognize the roles of macrophages and neutrophils: Macrophages are involved in phagocytosis and antigen presentation, while neutrophils are primarily involved in the initial response to infection, neither of which secrete antibodies.