Blood fraction remaining unchanged after circulation through kidney is _____________.
Reason: Glomeruli does not allow the protein to come in ultra-filtrate from blood capillaries because their large molecular size. The glucose is present in the ultra-filtrate is reabsorbed by active transport into the blood capillaries. Urea and uric acid fraction after circulation through kidney changes because they are not reabsorbed and are excreted out through urine.