Human Color Vision - Check In Quiz

What is the primary role of photoreceptive cells in the human retina? Mark all answers that are correct.

• Generate light energy so humans can see.

• Organize chemical signals so the human brain can process the information.

• Respond to incoming light energy by generating a chemical signal.

• Focus the incoming light energy through refraction and reflection.

What is true when we see a GREEN leaf? Mark all answers that are correct.

• Primarily green light energy has entered the eye.

• Green photoreceptive cones in the retina have been stimulated.

• Photoreceptive rods in the retina have been stimulated by light energy.

• The leaf has absorbed most of the green light available in the surrounding environment.

When we see an object that appears yellow to us, what must be true? Mark all answers that are correct.

• Yellow photoreceptive cones in the retina have been stimulated.

• Green and Blue photoreceptive cones in the retina have been equally stimulated by incoming light energy.

• Red and Blue photoreceptive cones in the retina have been equally stimulated by incoming light energy.

• Green and Red photoreceptive cones in the retina have been equally stimulated by incoming light energy.

What is true about the visible light spectrum? Mark all answers that are correct.

• It includes all of the spectral colors.

• It includes all of the light energy that reflects into our eyes.

• It is the same for all species within the animal kingdom.

• It includes all of the light energy in the universe that human eyes are capable of detecting.

When you see an object that appears to be MAGENTA in color, which photoreceptive cones in your eyes are being stimulated? Mark all answers that are correct.

• Red and Green cones.

• Red and Blue cones.

• Yellow and Red cones.

• Blue and Green cones.

If you are wearing a BLUE shirt and enter a room with a single light source that emits mostly GREEN light energy, why does your shirt appear GREY? Mark all answers that are correct.

• The majority of the green light energy is absorbed by the shirt and not reflected into your eyes.

• Your photoreceptive cones do not receive enough energy from the shirt to be stimulated.

• The color blue is not a part of the visible light spectrum for humans.

• Red and Blue photoreceptive cones are over stimulated and not capable of sending chemical signals.

Why does a BLACK object heat up more in sun light than a WHITE object? Mark all answers that are correct.

• The black object is receiving less light energy from the sun.

• The white object is absorbing most of the light energy from the sun.

• The white object is reflecting most of the light energy from the sun.

• The black object is absorbing more of the light energy from the sun.

Why is it possible that a honey bee and a human see the colors of a flower differently? Mark all answers that are correct.

• A honey bee receives different types of light energy from the flower.

• The photoreceptive cells in the honey bee are different than those found in a human eye.

• Honey bees have magical powers.

• Flowers reflect different types of light energy depending on the animal that is nearby.