63: The eye (physiology) Quiz

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  1. 1. Which is smaller, rhodopsin or retinal?

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  2. 2. Which of these parts bends light?

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  3. 3. To view things farther away, the lens must become flatter.

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  4. 4. You have more rods than cones.

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  5. 5. The retina sees images upside down.

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  6. 6. Which of these parts holds the lens in place?

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  7. 7. Which of these is NOT a job that the pigmented epithelial cells do?

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  8. 8. Which of these let the rods and cones communicate with each other?

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  9. 9. Which cell part makes a microtubule highway through a narrow passage in the rod and cone cells?

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  10. 10. Where will you find the highest number of cone cells?

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  11. 11. Pigmented epithelial cells regenerate when damaged, just like skin cells.

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  12. 12. What holds the rhodopsin molecule in place?

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  13. 13. What happens when a photon of light hits the retinal molecule?

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  14. 14. Which of these leads right into the optic nerve?

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  15. 15. Your blind spot is right over your fovea.

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  16. 16. Which amino acid to we find functioning as a neurotransmitter at the ends of rods and cones?

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  17. 17. Which one of these allows us to see at night?

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  18. 18. Which is larger, the macula or the fovea?

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  19. 19. When it is dark, the rods are switched on and are releasing neurotransmitters.

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  20. 20. Which of these is a color that cones don’t respond to?

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