Solved UPSC CDS/OTA Question
A solved UPSC CDS/OTA PYQ - decoded step-by-step.
Solve it the standard way once - then learn the shortcut.
Q · Digestive Systemmedium · 45s
Where are Peyer’s patches located and what is their function?
TopicDigestive System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
The complete worked solution.
Every step explained - no skipped algebra.
Peyer’s patches are lymphoid follicles in the ileum’s mucosa and submucosa that monitor gut antigens, initiate mucosal immune responses, and maintain tolerance to dietary and commensal microbial antigens.
Final Answer: Option B - Small intestine, immune surveillance