Describe the changes in pupil size when light is shined into the eye. Explain why this happens.

The pupil constricts (becomes smaller) to decrease the light entering the eye. This prevents damage to the eye.

MK
Answered by Melissa K. Biology tutor

2568 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What is the difference between diffusion, osmosis and active transport?


How does oxygen enter the body?


Describe how water moves from the roots to the leaves in plants


What is the difference between mitosis and meiosis?


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