Chapter 16: Excretory Products and Their Elimination – Part 4
✅ Chapter 16: Excretory Products and Their Elimination – Part 4 🔍 NEET PYQs (Q26 to Q50) with Detailed Solutions Q26. The excretory product in birds is: A) Urea B) Ammonia C) Creatinine D) Uric acid ✅ Answer: D) Uric acid 🧠 Explanation: Birds are uricotelic — they conserve water by excreting nitrogen in the form of uric acid , which is excreted as a paste or solid. Q27. Which part of the nephron absorbs maximum water? A) Loop of Henle B) Collecting duct C) Distal convoluted tubule D) Proximal convoluted tubule ✅ Answer: D) Proximal convoluted tubule 🧠 Explanation: Nearly 70% of water is reabsorbed in the PCT through passive reabsorption along with solutes. Q28. Which hormone controls reabsorption of water in the kidneys? A) Thyroxine B) Aldosterone C) ADH D) Insulin ✅ Answer: C) ADH 🧠 Explanation: ADH (vasopressin) increases permeability of the collecting duct , helping in reabsorption of water , thus reducing urine volume. Q29. The condition w...