OCR General Certificate of Secondary Education (GCSE) Biology Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

Master GCSE Biology with our interactive exam quizzes. Utilize dynamic questions and thorough explanations to boost your understanding and excel in your GCSE Biology exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What organ is responsible for light detection?

Nose
Ears
Skin
Eyes

The correct answer is: Eyes

The eyes are the organs responsible for light detection. They contain specialized cells called photoreceptors, which are sensitive to light. These photoreceptors, known as rods and cones, convert light into electrical signals that can be processed by the brain, allowing us to perceive images and colors. The structure of the eye, including the cornea, lens, and retina, plays a crucial role in focusing light and facilitating clear vision. This function of the eyes is essential for various biological processes, such as finding food, avoiding predators, and navigating the environment. Understanding the roles of the other organs highlights why they do not play a part in light detection. The nose is primarily involved in the sense of smell, ears are responsible for hearing and balance, and skin has receptors for touch, temperature, and pain but does not detect light.