Glomerular Filtration or ultrafiltration solved UPSC Zoology Previous Year Questions 2020 in English and Hindi

The metanephric kidney of human has microscopic structural and functional units the nephron which is the site of actual urine formation. The first and foremost step is ultrafiltration or glomerular filtration.

Glomerular filtration occurs in the glomerulus where blood is filtered. This process occurs across the three layers- the epithelium of Bowman’s capsule, the endothelium of glomerular blood vessels, and a membrane between these two layers.

Blood is filtered in such a way that all the constituents of the plasma reach the Bowman’s capsule, except proteins. Therefore, this process is known as ultrafiltration.