- Q How do antibodies and antigens relate like locks and keys?
Dr. Michael Roizen, Internal MedicineIt may help to think of the antibody as a kind of molecular lock that needs to be unlocked if the white blood cell it's riding on is to take action. Now think of the antigen as the key. If the key fits the antibody lock, white blood cells start rapidly... Full Answer
- Q What are antibodies?
Dr. Brad Spellberg, Infectious DiseaseAntibodies are proteins produced by specialized immune cells called B lymphocytes. Each B cell produces 1 type of antibody. B cells are so numerous and diverse, that the body can produce a virtually limitless array of antibodies to bind almost... Full Answer