The excretion by the human kidneys
1. Descending limb of Loop of Henle is impermeable to water
2. Distal convoluted tubule is incapable of reabsorbing HCO3
3. Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules
4. Ascending limb of Loop of Henle is impermeable to electrolytes
Nearly 99 per cent of the glomerular filtrate is reabsorbed by the renal tubules