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Rods and Cones in the Eye

The retina lines the back of the eye. Rod cells help you see shapes in dim light, while cone cells help you see colors and details in brighter light.

In the picture

  1. Moonlit cat: a shape seen in dim light as a gray silhouette.
  2. Rod-shaped cell: active in dim light.
  3. Daylit cat: seen in color and detail.
  4. Cone-shaped cell: active in bright light.

Examples

  • Finding your way around a dark room by seeing shapes.
  • Picking a red apple in daylight by its color.

Quiz: Rods and Cones in the Eye (Age 12)

  1. Which cells help you see shapes in dim light without color?

    • Cells in the lens
    • Cone cells
    • Rod cells
  2. Which cells help you see colors and details in brighter light?

    • Cone cells
    • Rod cells
    • Cells in the optic nerve
  3. What lines the back of the eye?

    • The lens
    • The retina
    • The cornea

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Biology, Age 12