In which of the following organ, maximum absorption of water takes place in humans?
A
Lung
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B
Skin
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C
Kidney
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D
Heart
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Solution
The correct option is C Kidney
Kidneys have small filtering units called nephrons. These nephrons filter the blood. Some substances in the initial filtrate, such as glucose, amino acids, salts, and a major amount of water, are selectively reabsorbed into the blood, as the urine flows along the tube. The amount of reabsorption of water depends on the amount of excess fluid in the body. If the body requires more water, maximum reabsorption of water takes place in the nephrons, present in the kidney.