Which of the following is not reabsorbed during urine formation?
Urea
The glomerular filtrate entering the renal tubule is very dilute containing a lot of usable materials. The usable materials like glucose, sodium and some salts are reabsorbed. Urea is a nitrogenous waste that is eliminated from the body. Urea is highly poisonous and if allowed to accumulate in the body to a certain level, it may cause death. So, it is not reabsorbed during urine formation.