What is active transport?

Active transport is the transport of substances against their concentration gradient with the use of energy. Molecules naturally flow down their concentration gradient, ie. from where they are more concentrated to where they are less concentrated, in order to establish balance. Active transport uses energy to maintain a strong concentration of a molecule on one side of a plasma membrane and a weak concentration on the other.

Answered by Chris D. Biology tutor

2071 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

How is temperature controlled by the body (homeostasis) ?


A man has a disease caused by a dominant allele. The mother has the disease but the father does not, explain how we know the man is heterozygous for this disease.


How is the structure of a capillary related to its function?


How do vaccinations work? Why don't they cause disease?


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