Question:

The functional unit of kidney is: ____.

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Don't confuse "Neuron" with "Nephron"! - Neuron = Neurological (Brain) - Nephron = Nephrology (Kidney)
Updated On: May 16, 2026
  • Neuron
  • Nephron
  • Glomerulus
  • Bowman capsule
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The Correct Option is B

Solution and Explanation


Step 1: Understanding the Concept:

A functional unit is the smallest part of an organ that can perform all the functions of that organ. For the kidney, this means filtering blood and forming urine.

Step 2: Detailed Explanation:

Each human kidney contains approximately 1 million nephrons.
Neuron: The functional unit of the nervous system.
Nephron: The microscopic structure that filters blood, reabsorbs what is needed, and excretes the rest as urine.
Glomerulus/Bowman capsule: These are actually parts of the nephron, not the entire functional unit itself.

Step 3: Final Answer:

The functional unit of the kidney is the nephron.
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