How is water reabsorption carried out in the kidney?

When water levels are low in the blood, osmoreceptors in the hypothalamus detect this change and trigger the posterior pituitary gland to release a hormone called ADH. ADH binds to receptors on the cell membrane of the collecting ducts which then triggers the formation of cyclic AMP (a secondary messenger). The cyclic AMP causes vesicles containing aquaporins (protein based water channels) to bind to the cell surface membrane, increasing its permeability and allowing water to move out of the tubule cells by osmosis.

Answered by Jenna P. Biology tutor

2256 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What is the function of the Loop of Henle?


Describe the process of DNA replication in eukaryotic cells.


Describe the process of semi-conservative DNA replication.


Describe the structure and function of plasma membranes.


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences