Compare function
Alveoli in the lungs and nephrons in the kidneys.
Answers
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning. ... The walls of the alveoli are one cell thick and it contains an extensive network of blood capillaries. Nephrons are made of glomerulus, bowman's capsule, and a long renal tube
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Alveoli have thin walled balloon – like structure. Surface is fine and delicate.
2. Alveoli are supplied with extensive network of thin walled blood vessels, i.e. capillaries for exchange of gases.
3. Alveoli increase surface area for diffusion of CO2 from blood to air and O2 from air to blood.
4. Alveoli only provide surface for exchange of gases in the lungs.
5. Alveoli are very small and a large number of them are present in each lung.
NEPHRONS
1. Nephron have thin walled cup-shaped structure attached with thin walled tubule.
2. Bowman’s capsule is supplied with a cluster of capillaries called glomerulus for filtration. A network of blood vessel is present around the tubular part of nephron for re-absorption of useful substances and water.
3. Nephrons also increase surface area for filtration of blood and re-absorption of useful substances and water from filtrate leaving behind urine.
4. Tubular part of nephron also carries the urine to collecting duct.
5. A large number of nephrons, the basic filtration unit, are present in each kidney.