Is normal expiration, at rest, a passive or active process in a healthy individual? And why?

Expiration is a passive process. It happens due to relaxation, not contraction, of the muscles of the chest. As well as the elastic recoil of the lungs. Both of these processes do not require energy and hence are passive.

Answered by Samuel J. Biology tutor

8674 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What is the structure of a protein?


Describe the passive movement through diffusion and explain Fick's Law


What is a mutation and what are the consequences of one?


Describe the events that take place in a neurone which produce an action potential


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