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40-50 % of filtered urea is reabsorbed through passive diffusion in the Proximal Convoluted Tubules. Loop of Henle, Distal Convoluted Tubules and Cortical Collecting Ducts are impermeable to urea. But secretion of urea happens in descending Loop of Henle (This helps to maintain the osmotic gradient in the medulla of the Kidney). There is also re-absorption of urea in the medullary collecting ducts.
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∙ 14y ago
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∙ 11y agoWiki User
∙ 9y agoIn humans urea is reabsorbed in the nephrons. Inside the nephrons are medullary collecting ducts which collects the urea for reabsorption.
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Which filtrates is not reabsorbed in signiticant quantities in the bloodstream by the nephrons?
Urea
Why do urea and ammonia levels increase after filtration occurs?
Urea and ammonia increase because water is reabsorbed from the nephron, making the urea more concentrated.
What is reabsorbed by the proximal convoluted tubule cells?
Glucose is totally reabsorbed via secondary active transport through co-transport channels driven by the sodium gradient out of the nephron
What are the substances reabsorbed in distal convoluted tubule?
When blood is filtered at the glomerulus (filter unit) of the kidney, some substances don't even make it into the nephron. These include proteins, which are simply too big to diffuse from the capillaries and across the Bowman's capsule. As for what substances are reabsorbed (by active transport) into the bloodstream from the nephron, these include glucose, which is too valuable to be lost in urine. Urea and other substances are lost in the urine.
Substance that is excreted by the nephron after all of the useful products have been reabsorbed into the blood?
Kidney filters about 180 liters of blood, through nephrons. About 178 liters are reabsorbed. It may surprise you that why kidneys do so much exercise. Reason is that, the waste products of metabolism specially urea and creatinine are very poisonous for brain and body wants to get rid of them at any cost. So urea, creatinine and other waste products of excretion( Like metabolites of drugs and poisonous substances.) are excreted by kidneys.
Which filtrates is not reabsorbed in signiticant quantities in the bloodstream by the nephrons?
Urea
Why do urea and ammonia levels increase after filtration occurs?
Urea and ammonia increase because water is reabsorbed from the nephron, making the urea more concentrated.
What substances is normally present in urine?
sugare
What is the main substance in chromosomes?
Urine consists of Urea, salts and other waste products that do not get reabsorbed into the blood capillaries. It also consists of water.EDIT
Which substances present in the glomerular filtrate but not normally in urine?
glucose and amino acids, because they are selectively reabsorbed in the proximal convoluted tubule.
What substances make up the urine?
Urine consists of Urea, salts and other waste products that do not get reabsorbed into the blood capillaries. It also consists of water
What is reabsorbed by the proximal convoluted tubule cells?
Glucose is totally reabsorbed via secondary active transport through co-transport channels driven by the sodium gradient out of the nephron
What is the function of the loop of Henie?
well urea salts crap like that is filtered through the glomerus were it then becomes filtrate (made up of the urea slats i think glucose too) it then travels down the loop of henley where the glucose is reabsorbed by the blood but the waste product are carried off to the bladder :)
What are the substances reabsorbed in distal convoluted tubule?
When blood is filtered at the glomerulus (filter unit) of the kidney, some substances don't even make it into the nephron. These include proteins, which are simply too big to diffuse from the capillaries and across the Bowman's capsule. As for what substances are reabsorbed (by active transport) into the bloodstream from the nephron, these include glucose, which is too valuable to be lost in urine. Urea and other substances are lost in the urine.
Substance that is excreted by the nephron after all of the useful products have been reabsorbed into the blood?
Kidney filters about 180 liters of blood, through nephrons. About 178 liters are reabsorbed. It may surprise you that why kidneys do so much exercise. Reason is that, the waste products of metabolism specially urea and creatinine are very poisonous for brain and body wants to get rid of them at any cost. So urea, creatinine and other waste products of excretion( Like metabolites of drugs and poisonous substances.) are excreted by kidneys.
Is carpet urea same as nitrogen urea?
No,carpet urea is urea formaldehyde it is aproduced by treating urea with formaldehyde
How does urine get to the kidney?
The question implies that the urine is already formed prior to arrival at the kidneys. This assumption is inaccurate. Unrine is formed in the kidneys, by the kidneys, when blood is filtered to make a solution of urea, ions, glucose and water. The glucose, along with some of the water and ions, are reabsorbed into the bloodstream, leaving a solution of urea and excess water/ions. This is the urine that we excrete when we pay a visit to the loo.
