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

2539 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Explain the process of phagocytosis


Explain how blood glucose levels are controlled and how this is an example of negative feedback mechanisms.


Describe how the resting state of a neurone in the body is maintained:


Explain, with a digram, the difference between meiosis and mitosis


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