Which of the Following Is True About Photoreceptors

question 28

Multiple Choice

Which of the following is true about photoreceptors?

• A) Three types of color- sensitive photoreceptors exist: red, green, and yellow.
• B) Rods absorb light throughout the visual spectrum but confer only gray tone vision.
• C) In dim light, images are focused directly on the rods in the fovea centralis.
• D) If all cones are stimulated equally, all colors are absorbed by the cones and the color perceived is black.

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