Multiple choice

The immunoglobulin present in tears and saliva is

  1. IgM

  2. IgA

  3. IgD

  4. IgE

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

This immunoglobulin being an antibody plays a vital role in mucosal immunity. It is dominantly present in mucous secretions, including tears and saliva.