Isaac is in a room that is almost completely dark. He notices while lying in bed that if he tries to focus on the faint little red light on the fire detector, it seems to disappear. When he asks his mother why this happens, she explains that the eye receptors that understand colour do not function well in very dim light. To which receptors is she referring?

Question

Quizplus · Accepted Answer

Cones are the photoreceptor cells in the retina that are responsible for color vision. They function best in bright light, unlike rods, which are more sensitive and work better in dim light but do not perceive color.

Isaac Is in a Room That Is Almost Completely Dark