<P> In the first part of the nephron , Bowman 's capsule filters blood from the circulatory system into the tubules . Hydrostatic and osmotic pressure gradients facilitate filtration across a semipermeable membrane . The filtrate includes water , small molecules , and ions that easily pass through the filtration membrane . However larger molecules such as proteins and blood cells are prevented from passing through the filtration membrane . The amount of filtrate produced every minute is called the glomerular filtration rate or GFR and amounts to 180 litres per day . About 99 % of this filtrate is reabsorbed as it passes through the nephron and the remaining 1 % becomes urine . </P>
<P> In the first part of the nephron , Bowman 's capsule filters blood from the circulatory system into the tubules . Hydrostatic and osmotic pressure gradients facilitate filtration across a semipermeable membrane . The filtrate includes water , small molecules , and ions that easily pass through the filtration membrane . However larger molecules such as proteins and blood cells are prevented from passing through the filtration membrane . The amount of filtrate produced every minute is called the glomerular filtration rate or GFR and amounts to 180 litres per day . About 99 % of this filtrate is reabsorbed as it passes through the nephron and the remaining 1 % becomes urine . </P>
in what section of the kidney is urine formed
in what section of the kidney is urine formed
In the first part of the nephron , Bowman 's capsule
In the first part of the nephron , Bowman 's capsule