Describe the types of movement of substances across a partially permeable membrane

Facilitated diffusion - the movement of substances down a concentration gradient via a membrane protein.
Active transport - the movement of substances against a concentration gradient which requires energy/ATP using a carrier protein.
Osmosis - the movement of water down a water potential gradient.

Answered by Rachael T. Biology tutor

3044 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

In what circumstances and how do humans anaerobically respire?


How do bacteria acquire resistance to antibiotics?


Explain how ATP is generated by oxidative phosphorylation.


How does meiosis achieve genetic diversity?


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