Q. 113.5( 2 Votes )

What are the main processes of urine formation?

Answer :

The main processes of urine formation are: Glomerular Filtration, Reabsorption and tubular secretion.


Glomerular filtration removes solutes from the blood which is the first step of urine formation. The force of hydrostatic pressure in the glomerulus is the driving force that pushes the filtrate out of the capillaries.


Tubular reabsorption is the process by which the nephron removes water and reabsorbs solutes from the tubular fluid and returns them to the blood. Reabsorption of water also occurs passively in the initial segments of the nephron. For example, substances like glucose, amino acids, etc., are reabsorbed actively whereas the nitrogenous wastes are absorbed by passive transport in the tubules.


Tubular secretion occurs in the proximal convoluted tubule of the nephron and is responsible for the transport of specific molecules out of the blood and then into the urine. It helps in the maintenance of ionic and acid base balance of body fluids.



Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
NCERT Exemplar|Excretory Products and their Elimination Part 2NCERT Exemplar|Excretory Products and their Elimination Part 2NCERT Exemplar|Excretory Products and their Elimination Part 232 mins
Know all about Urine FormationKnow all about Urine FormationKnow all about Urine Formation64 mins
Learn about Counter Current Mechanism and Regulation in ExcretionLearn about Counter Current Mechanism and Regulation in ExcretionLearn about Counter Current Mechanism and Regulation in Excretion60 mins
NCERT Exemplar|Excretory Products and their Elimination Part 1NCERT Exemplar|Excretory Products and their Elimination Part 1NCERT Exemplar|Excretory Products and their Elimination Part 131 mins
Mechanism of urine formationMechanism of urine formationMechanism of urine formation46 mins
Interactive Quiz on Counter Current and Regulation of Kidney FunctionInteractive Quiz on Counter Current and Regulation of Kidney FunctionInteractive Quiz on Counter Current and Regulation of Kidney Function42 mins
Test your knowledge about Urine Formation through QuestionsTest your knowledge about Urine Formation through QuestionsTest your knowledge about Urine Formation through Questions44 mins
Cell - The unit of Life - 02Cell - The unit of Life - 02Cell - The unit of Life - 0268 mins
All about Enzymes | A thorough lectureAll about Enzymes | A thorough lectureAll about Enzymes | A thorough lecture47 mins
Introduction To Cell DivisionIntroduction To Cell DivisionIntroduction To Cell Division60 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
caricature
view all courses