Statements related to the formation of urine are given below. Arrange them in the figure appropriately. Ultrafiltration takes place. Collects urine. Glucose, amino acid, sodium, potassium etc. are reabsorbed here. Urea, sodium, potassium ions etc are secreted here.

The mechanism of urine formation involves the three following steps: Glomerular Filteration This occurs in the glomerulus where blood is filtered in such a way that all the constituents of the plasma reach the Bowman’s capsule, except proteins. Therefore, the process is also called as ultrafiltration. Reabsorption About 99 % of the filtrate obtained is reabsorbed by the renal tubules which is termed as reabsorption. This is achieved by active and passive transport. Secretion The next step is the tubular secretion. Here, tubular cells secrete substances like hydrogen ion, potassium ion, etc into the filtrate. The secreted ions mix up with the filtrate and form urine. The urine passes out of the nephron tubule into a collecting duct. Hence, in the present illustration, we can arrange the steps as follows: