Excretory System – Biology for UPSC EPFO/APFC Exam | Notes + MCQs | Unicorn Factory Classes

Biology for UPSC EPFO/APFC 2025 – In this lecture, we cover the Human Excretory System, explaining the structure and function of kidneys, urine formation, and related disorders in a clear, exam-oriented way.
This topic is key for UPSC, EPFO, SSC, CDS, and other competitive exams under the Human Physiology section.
🔹 Topics Covered:
Introduction to the Human Excretory System
Organs of Excretion – Kidneys, Ureters, Urinary Bladder, Urethra
Structure of Nephron – Functional Unit of Kidney
Steps in Urine Formation – Filtration, Reabsorption, Secretion
Regulation of Kidney Function – Role of ADH, Aldosterone, and Hormones
Composition of Normal Urine
Osmoregulation and Homeostasis
Common Disorders – Kidney Stones, Uremia, Nephritis, Dialysis
PYQs + Practice MCQs

📖 Download full Biology Notes + Topic-wise MCQs:
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⚡ Next Lectures:
Reproductive System

🎯 Objective: Gain complete clarity on Excretory System concepts (Nephron + Filtration + Regulation) for UPSC EPFO/APFC 2025.