Question

An antibody is a:

• A. white corpuscle which attack invading bacteria
• B. molecule that specifically inactivate an antigen
• C. component of the blood
• D. secretions of mammalian erythrocyte

Answer 1

Answer: (B)

Antibodies are $\gamma$ -(gamma) globulins which produced in response to allergans (antigens) in our body. Specific antibodies are present in some vaccines. Administration of vaccine produce passive immunity. Component of the blood are plasma and blood corpuscles. The white blood corpuscles which phagocytise bacteria are monocytes.