compare the functioning of alveoli in the lungs and nephron in the kidneys with respect to their structure and functioning
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Ans. (i) Alveoli are tiny balloon-like structures present inside the lungs. (i) Nephrons are tubular structures present inside the kidneys. (ii) The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries.
Explanation:
Explanation:
Alveoli and lungs act as the structural and functional units of lungs and kidneys respectively. Alveoli occur in the respiratory system while the nephrons occur in the excretory system. The cell wall of alveoli and nephrons is thick and surrounded by blood capillaries. Let us have a detailed look at the differences between alveoli and nephrons with respect to its structure and function.
Comparison Chart
Alveoli
Nephrons
Alveoli are the tiny air sacs present in lungs that allows rapid exchange of gases.
Nephrons comprise glomerulus and tubules through which glomerular filtrate passes.
Present in lungs
Present in kidneys
There are located in the respiratory system
These are located in the excretory system
There are around 480 million alveoli found in each lung
Here re around 1.5 million nephrons found in kidneys
These are sac-like structures
These are tubular structures
Pulmonary arterioles supply blood
Afferent arterioles supply blood
Blood is supplied to pulmonary veins
Blood is supplied to renal veins
Facilitates gaseous exchange in lungs
Facilitates blood filtration to produce urine
Made up of simple squamous epithelium Made up of simple cuboidal epithelium with microvilli