Compare the structure and mechanism of alveoli in the lung and nephron in the kidney.

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Chapter 5

NCERT

Class 10

Science

Solutions

13. Compare the structure and mechanism of alveoli in the lung and nephron in the kidney.

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Question:

Compare the structure and mechanism of alveoli in the lung and nephron in the kidney.

Answer:

The tiny air sacs present in the lungs that allow the quick exchange of gases are alveoli.

The glomerulus (kidney) and tubules ("kidney tubules) through which glomerular filtrate passes are present in nephrons.

Alveoli	Nephron
Sac-like structure for quick exchange of gases	The glomerulus (kidney) and tubules ("kidney tubules) through which glomerular filtrate passes are present in nephrons.
Present in Lungs	Present in Kidneys
Located in the respiratory system.	Located in the excretory system.
Sac-like structure	Tuboler structure
Around 480 million alveoli are found in each lung	Around 1.5 million alveoli are found in kidneys
Blood supply by pulmonary arterioles	Blood supply by afferent arterioles
Blood supplied to pulmonary veins	Blood supplied to renal veins
Simplify gaseous exchange	Simplify filtration of blood to produce urine.
Includes simple squamous epithelium	Includes simple cuboidal epithelium with microvilli

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Alveoli Diagram

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Diagram of Nephron

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