TīmeklisKey terms from Edexcel IGCSE Biology on the topic of The Eye Terms in this set (21) Cornea Transparent layer forming the front of the eye. Focuses light. Pupil Dark circular opening in the centre of the eye which lets light through Iris Coloured ring of tissue which controls the amount of light entering the eye by changing the size of the pupil

AQA GCSE Biology: The Eye (biology only) - YouTube

TīmeklisThe eye responds to bright light to protect the retina from damageThe bright light triggers a reflex that makes the pupils smaller, meaning less light enters the eyeAs with all reflexes, there is a stimulus, receptor and effectorThe stimulus is the light, the receptor is the light receptors in the eye and the effectors are the radial or circular … TīmeklisOur eyes are specialised sense organs that contain receptors. sensitive to light. There are many parts that work together to produce a focused image on the retina under … darty ordi portable acer

How the eye works – Higher - Coordination and control

TīmeklisThe eye, rods and cones - Biology Notes for IGCSE 2014 #88 Structure and function of the eye, rods and cones You need to be able to label parts of the eye on diagrams. The eyebrow stops sweat … TīmeklisThe eye is a sense organ containing receptors. sensitive to light, intensity and colour. TīmeklisKick-start your revision with our 2-day Biology GCSE Easter revision courses for AQA and Edexcel IGCSE. Book now for online or face-to-face in London. Paper 1 Topic 1: Key Concepts in Biology Topic 2: Cells and Control Topic 3: Genetics Topic 4: Natural Selection and Genetic Modification Topic 5: Health, Disease and the Development of … darty ordi portable