Photoreceptor Structure and Function Quiz
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Questions and Answers

Which part of the photoreceptor contains light-sensitive photopigments?

  • Cell body
  • Outer segment (correct)
  • Inner segment
  • Synaptic terminal

    • What distinguishes rod photoreceptors from cone photoreceptors?

  • Cell body appearance
  • Inner segment appearance
  • Synaptic terminal appearance
  • Outer segment appearance (correct)

    • Which type of photoreceptor is more sensitive to light?

  • Cones
  • Both rods and cones
  • Neither rods nor cones
  • Rods (correct)

    • How many cones are estimated to be in each human retina?

    <p>5 million</p> Signup and view all the answers

    How many rods are estimated to be in each human retina?

    <p>92 million</p> Signup and view all the answers

    What is the term used to describe the presence of both rods and cones in the human retina?

    <p>Duplex retina</p> Signup and view all the answers

    Which type of photoreceptor contributes to vision in nighttime lighting?

    <p>Rods</p> Signup and view all the answers

    Which type of photoreceptor contributes to vision in daytime lighting?

    <p>Cones</p> Signup and view all the answers

    Which type of lighting conditions involve both rods and cones in vision?

    <p>Mesopic conditions</p> Signup and view all the answers

    How many types of photoreceptors are there in the retina?

    <p>2</p> Signup and view all the answers

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