The composition of glomerular filtrate and urine is not same. Comment. 

$\Rightarrow$ In glomerular filteration large amount of $\mathrm{H}_{2} \mathrm{O}$, urea, uric acid, creatinine, amino acid, glucose, $\mathrm{Na}^{+}-\mathrm{K}^{+}$, vitamins and hormones are present.

- Urine is formed as a result of re-absorption and secretion. It contains urea, creatine, Ammonia, uric acid, oxalic acid, vitamins, hormones etc.

- Thus, composition of glomerular filterate and urine is different.