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What causes the concentration of urea to be higher in the urine than in the filtrate?
During reabsoption most of the water exits the nephron and enters the interstitial fluid. This increases the concentration of ions such as potassium in the nephron. In the collecting duct (at the very end) very little water is left and the concentration of potassium, sodium, etc ions rises (including urea). This is why urine is acidic.
What else can I help you with?
When the concentration of antidiruetic hormone rises in the blood?
When the concentration of antidiuretic hormone rises in the blood, it causes the kidneys to reabsorb more water, reducing urine production. This helps to maintain body fluid balance by increasing the amount of water retained in the body.
What is a major difference between filtrate in the nephron and urine leaving the bladder?
Filtrate in the nephron is a fluid derived from the blood plasma that undergoes filtration and further processing in the renal tubules before becoming urine. Urine leaving the bladder is a final product of the filtration and reabsorption process, containing waste products, excess water, and electrolytes that the body needs to eliminate.
What are the 4 stages of urine formation?
the 4 stages in urine formation are.... 1- filtration: blood is filtered from the glomerulus into the bowmans capsule due to great pressure. the filtrate consists of water, nutrients, electrolytes and metabolic waste products 2- reabsorbtion: occurs in the renal tubules, reclaims useful substances for the blood 3- secretion: occurs in the renal tubules from peritubular capillaries. disposes of undesirable substances. 4- urine concentration and volume:when present, ADH (antidiuretic hormone), allows water to leave via the walls of collecting ducts, altering the urines concentration and volume. hope this helps.. :D
What are the effects of hyper secretion of ADH in urine quantity and component?
ADH is short for Anti Diuretic Hormone and it prevents excess water loss. As such, a hyper-secretion of ADH will result in less urine by volume, and the urine will have a lower concentration of water. Conversely, it will have a higher concentration of solutes (Sodium, Potassium, Urea, etc.)
What hormone causes loss of glucose in the urine?
The hormone that causes loss of glucose in the urine is insulin. Insulin is responsible for transporting glucose from the bloodstream into cells for energy production. When insulin is deficient or ineffective, as in diabetes, glucose levels in the blood can become elevated, leading to its excretion in the urine.
Why is urea concentration higher in the urine than in the filtrate?
Urea concentration is higher in urine than in the filtrate because the kidneys reabsorb water and certain solutes during the filtration process. As the filtrate passes through the renal tubules, water is reabsorbed, concentrating the remaining solutes, including urea. Additionally, urea is actively secreted from the blood into the tubular fluid, further increasing its concentration in the final urine. This process helps regulate nitrogen waste excretion while conserving water.
What happens with an increase in the solute concentration of the filtrate in the lumen of the nephron tubules?
An increase in the solute concentration of the filtrate leads to an increase in osmotic pressure in the nephron tubules. This triggers more water reabsorption from the filtrate, reducing urine volume and maintaining overall body fluid balance.
What causes loss of glucose in the urine?
Insulin affects the concentration of glucose in the urine.
Difference between filtrate and urine?
Until the liquid reaches the renal pelvis, it is "glomerular filtrate," when it reaches the pelvis, it is called "urine"
What happened to the volume of urine as the solute concentration in the interstitial space increased?
As the solute concentration in the interstitial space increases, the volume of urine tends to decrease. This is because the kidneys reabsorb more water from the filtrate to help maintain the body's fluid and solute balance.
WhaT is the difference between filtrate and urine?
The main difference between filtrate and urine is the chemical composition of the two. Filtrate has almost all the substance that blood plasma has except blood proteins while urine only contains waste substances.
What the difference between filtrate and urine?
The main difference between filtrate and urine is the chemical composition of the two. Filtrate has almost all the substance that blood plasma has except blood proteins while urine only contains waste substances.
Which would be in a greater relative concentration in the urine than in the glomerular filtrate?
Phosphate ions, sulfate ions, potassium ions, urea, uric acid, creatine.
What percent of filtrate becomes urine?
1 %
What structure of the kidney receives urine first?
In fact, the kidney dose not receives the urine but it produces the urine by receiving the filtrate from the blood vessels . and the first part wich receives the filtrate is the " glomerus"
What happened to the urine volume as the concentration gradient increased?
As the concentration gradient increases, the urine volume typically decreases. This is because a higher concentration gradient drives more water reabsorption in the kidneys, resulting in a lower urine volume being produced.
Why is K plus more concentrated in the urine then filtrate?
K+ is more concentrated in the urine than filtrate because while other substances are reabsorbed into the capillaries through the large pores, the potassium mostly stays in the urine, which increases its concentration. Also, the pH of the body needs adjustments, which needs a large amount of K+ to be excreted through the excretory system to adjust to the optimum pH for the body.
