How does osmosis work?

Thinking of osmosis represented by two water towers attatched with a pipe at the bottom helped me to understand. If one tower has a higher level of water than the other, water will flow into the other to even the level out. In the case of osmosis, the pipe is the pipe is the semi permeable membrane which the water travels through. 

For a more practical description, try dipping a corner of a tissue into some water. Gradually the water will travel accross the tissue, since there is a much higher concentration of water at one side.

Water concentration is measured by water potential. Water will travel from a region of higher water potential to a region of lower water potential.

HB
Answered by Helena B. Biology tutor

2451 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Describe the process of DNA replication


Define the term 'water potential' and describe the difference between isotonic, hypotonic and hypertonic solutions. Suggest the different effects on cells placed in the different solutions.


Describe the transmission of a nerve impulse across a synapse.


Describe the synthesis of glomerular filtrate from the blood


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 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences