Question

Compare the functioning of alveoli in the lungs and nephron in the kidneys with respect to the structure and functioning

Answer 1

Answer:

Alveoli

Nephrons

Structure

Structure

(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.

(ii) Nephrons are made of glomerulus, bowman’s capsule, and a long renal tube.

Function

Function

(i) The exchange of O2 and CO2 takes place between the blood of the capillaries that surround the alveoli and the gases present in the alveoli.

(i) The blood enters the kidneys through the renal artery. The blood is entered here and the nitrogenous waste in the form of urine is collected by collecting duct.

(ii) Alveoli are the site of gaseous exchange.

(ii) Nephrons are the basic filtration unit

Answer 2

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Aʟᴠᴇᴏʟɪ ☇

۵ Alveoli are functional unit of lungs.

۵ A mature lung have about 30 crore alveoli.

۵ Alveoli provide a wide surface for gaseous exchange.

۵ The exchange of O₂ and CO₂ takes place through the network of capillaries in alveoli.

Nᴇᴘʜʀᴏɴs ☇

۵ Nephrons are functional unit of kidneys.

۵ A kidney has about 10 lakh nephrons.

۵ The surface of a nephron is not much more.

۵ The Bowman's capsule in nephron regulates the concentration of water and salta.

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