What are the differences between diffusion, osmosis and active transport?

Diffusion is the net movement of particles in solution across a partially permeable membrane. The net movement of particles is from higher to lower concentration gradient.

Osmosis is the net movement of water molecules across a water permeable membrane from areas of low solute concentration to high solute concentration.

Active transport occurs when cells need to move substances across membranes against the concentration gradient. This requires energy, in the form of ATP.

Answered by Thomas W. Biology tutor

11182 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

Why is it important to control body temperature?


What is the difference between mitosis and meiosis?


Describe the course of blood through the heart and lungs, explaining how it becomes oxygenated.


What are the issues of monocropping in agriculture and how could inputting hedgerows improve this?


We're here to help

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