School of Life Sciences | Ask A Biologist

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Seeing Color Bits

By Kimberly Pegram

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  • Photon: the smallest bit of light.
  • Photoreceptor: the special type of cell in your eye that picks up photons and then signals the brain. They are located in the retina (a layer at the back of the eye). There are two types, rods and cones.
  • Prism: a crystal object, such as cut glass, with at least three similar sides... more
  • Retina: getting its name from the Latin meaning "net", the retina is located at the back of the eye and is where light is detected... more
  • Wavelength: a property of photons that determines their energy (how "strong" they are).We see photons of different wavelengths as different colors.

Flashcard facts and information about how we see color

Biology Bits stories are a great way for you to learn about biology a little bit at a time. We’ve broken down information into pieces that are very tiny—bite-sized biology cards. Cutting out the cards will let you organize them however you want, or use them as flashcards while you read.

This set of bits will teach you about one of the ways we get information from the world around us: by seeing color. To learn more about the science behind your vision, visit Seeing Color.

Play the slide show from the beginning or pick a slide to begin with by clicking on a slide below.


You can also download Biology Bits in the following formats:

Biology Bits Download Print PDFBiology Bits Download Slideshow PDF
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Beaver Teeth

Here are some pieces of biology that you can sink your teeth into. One bit at a time.

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by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.

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Beaver Teeth

Here are some pieces of biology that you can sink your teeth into. One bit at a time.

Share to Google Classroom

Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.