Biology · Human Physiology and Digestive System
A 34-year-old male develops abdominal distension, excessive gas formation, and watery diarrhea after consuming milk products. A hydrogen breath test is positive after lactose ingestion. Which sequence BEST explains the pathophysiology of his condition?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1Lactase deficiency → lactose reaches colon → bacterial fermentation → hydrogen gas production and osmotic diarrhea✓
- 2Bile salt deficiency → impaired fat digestion → osmotic diarrhea
- 3Pancreatic enzyme deficiency → fat malabsorption → steatorrhea → diarrhea
- 4Lactase deficiency → glucose malabsorption → colonic bacterial fermentation → gas and osmotic diarrhea
Correct answer
Lactase deficiency → lactose reaches colon → bacterial fermentation → hydrogen gas production and osmotic diarrhea
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Biology?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Human Physiology and Digestive System MCQs →Want more practice questions on Human Physiology and Digestive System?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Biology · Human Physiology and Digestive System