GCSEBiologyWJECRevision Notes2. Variation, Homeostasis & Micro-organisms2.5 Response & RegulationSense Organs

Sense Organs (WJEC GCSE Biology): Revision Note

Exam code: 3400

Cara Head

Written by: Cara Head

Reviewed by: Lára Marie McIvor

Updated on

WJEC BiologyWJEC Science (Double Award): Biology

Sense Organs

  • Sense organs are groups of receptor cells which respond to specific stimuli such as light, sound, touch, temperature and chemicals (e.g. smell and taste)

    • Receptor cells are groups of specialised cells

    • They detect a change in the environment and stimulate electrical impulses in response

  • Sense organs relay the information from receptor cells as electrical impulses along neurones to the central nervous system

Examples of sense organs table

Sense organ

Sensitive to:

Sense

Skin

Pressure, temperature changes and pain

Touch and temperature

Tongue

Chemicals in food and drink

Taste

Nose 

Chemicals in the air

Smell

Ear

Sound and movement

Hearing

Balance

Eye

Light

Sight

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Author
Reviewer
Cara Head

Author: Cara Head

Expertise: Biology & Psychology Content Creator

Cara graduated from the University of Exeter in 2005 with a degree in Biological Sciences. She has fifteen years of experience teaching the Sciences at KS3 to KS5, and Psychology at A-Level. Cara has taught in a range of secondary schools across the South West of England before joining the team at SME. Cara is passionate about Biology and creating resources that bring the subject alive and deepen students' understanding

Lára Marie McIvor

Reviewer: Lára Marie McIvor

Expertise: Content Creator

Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.