Q:

The rods in the retina

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 The rods in the retina.


  1. Contain visual pigment which is more sensitive to red than to blue light.
  2. Are rendered insensitive by ordinary daylight.
  3. Are more widely distributed over the retina than are cones.
  4. Reflect red light more than blue light.
  5. Comprise about 20 per cent of foveal receptor cells.

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 A. False Rhodopsin absorbs blue-green light with a wavelength around 500 nm.

B. True Nearly all rhodopsin in broken down (bleached) in daylight.

C. True The field of vision using rods is greater than that using cones.

D. True Rhodopsin is a red pigment.

E. False There are no rods in the fovea.

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