Which cell is mainly responsible for producing antibodies after activation by a specific antigen?
Correct answer: A. Plasma cell
- A. Plasma cell
- B. Neutrophil
- C. Platelet
- D. Red blood cell
Explanation
Activated B lymphocytes can differentiate into plasma cells, which secrete antibodies specific to the stimulating antigen. Neutrophils engulf pathogens, platelets support haemostasis, and red blood cells transport gases.
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About Blood and Immunity
Blood and immunity covers plasma, red blood cells, white blood cells, platelets, haemoglobin, blood groups and haemostasis. It explains innate and adaptive defenses, antibodies, lymphocytes, inflammation, vaccination and immune memory, with a distinction between active and passive immunity and between antigen and antibody.
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