Multiple choice

An antibody is a large Y-shape protein used by the immune system to identify and neutralize foreign objects such as bacteria and virus. Which cell type produces antibodies?

  1. Macrophages

  2. T-lymphocytes

  3. NK

  4. Plasma cells

  5. Eosinophils

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

B-lymphocytes have antibodies on their cell surface which act as an antigen receptor. Upon activation, they differentiate into plasma cells which secrete large amounts of antibodies.