GK Question

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The functional unit of kidney is called ________.

  1. Neuron
  2. Nephron
  3. Alveolus
  4. Villus

Answer: Nephron

Nephrons filter blood, reabsorb nutrients, and produce urine. Each kidney has ~1 million nephrons. Understanding nephron structure is vital for physiology questions. [[NCERT Biology Class 11]]

Topic Biology - Human Excretory System
Exam Relevance SSC CGL, Railway NTPC, UPSC CAPF