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Question
Removal of proximal convoluted tubule from the nephron will result in:
Removal of proximal convoluted tubule from the nephron will result in:
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Solution
The correct option is C More concentrated urine
Nearly 99% of the glomerular filtrate is reabsorbed into the blood. This process takes place in the PCT, with the PCT being responsible for nearly 65% of reabsorption. If reabsorption of essential materials from the filtrate does not take place, then the filtrate will be a lot more concentrated and in effect the urine will be more concentrated. Therefore the answer is ‘more concentrated urine’. However loss of PCT from the nephron will have a more drastic effect on the body fluids and blood, because blood will lose most of its dissolved components and become severely dilute, disrupting the osmotic balance of the body.
Nearly 99% of the glomerular filtrate is reabsorbed into the blood. This process takes place in the PCT, with the PCT being responsible for nearly 65% of reabsorption. If reabsorption of essential materials from the filtrate does not take place, then the filtrate will be a lot more concentrated and in effect the urine will be more concentrated. Therefore the answer is ‘more concentrated urine’. However loss of PCT from the nephron will have a more drastic effect on the body fluids and blood, because blood will lose most of its dissolved components and become severely dilute, disrupting the osmotic balance of the body.
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