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Question
A large quantity of fluid is filtered everyday by the nephrons in the kidneys. Only 1% is excreted as urine. The remaining 99% of the filtrate ____________.
A large quantity of fluid is filtered everyday by the nephrons in the kidneys. Only 1% is excreted as urine. The remaining 99% of the filtrate ____________.
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Solution
The correct option is D is reabsorbed into blood
Only a part of the filterate formed in the Bowman's capsule is excreted along with the waste material because 99% of the filtrate is reabsorbed into the blood. 95% of urine is water and 5% is inorganic and organic materials. A comparison of the volume of the filtrate formed per day (180 litres per day) with that of the urine released (1.5 litres), suggest that nearly 99% of the filtrate has to be reabsorbed by the renal tubules.
Only a part of the filterate formed in the Bowman's capsule is excreted along with the waste material because 99% of the filtrate is reabsorbed into the blood. 95% of urine is water and 5% is inorganic and organic materials. A comparison of the volume of the filtrate formed per day (180 litres per day) with that of the urine released (1.5 litres), suggest that nearly 99% of the filtrate has to be reabsorbed by the renal tubules.
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