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प्रश्न
Compare the functioning of alveoli in the lungs and nephrons in the kidneys with respect to their structure and functioning.
उत्तर
| Alveoli | Nephrons |
| Structure | Structure |
| Alveoli are tiny balloon-like structures present inside the lungs. | Nephrons are tubular structures present inside the kidneys. |
| The walls of the alveoli are one cell thick and they contain an extensive network of blood capillaries. | Nephrons are made of glomerulus, a Bowman’s capsule, and a long renal tube. |
| Function | Function |
| 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. | 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. |
| Alveoli are the site of gaseous exchange. | Nephrons are the basic filtration unit. |
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|
Column I |
Column II |
|
(a) Alveoli |
(i) where aerobic respiration takes place |
|
(b) Bronchioles |
(ii) lined with hair |
|
(c) Nasal Chamber |
(iii) diffusion of gases |
|
(d) Bronchi |
(iv) small air tubes |
|
(v) an inverted Y shaped tube |
|
|
(vi) a common passage for food and air |
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