Other questions in this quiz

2. What happens to the iris when the pupils constrict?

  • Both the circular muscles and the radial muscles contract.
  • The circular muscles contract and the radial muscles relax.
  • The circular muscles relax and the radial muscles contract.

3. True or false: cones transmit information in brighter light than rods.

  • True
  • False

4. When a molecule of rhodopsin is hit by light, it splits up into opsin and

  • retinal
  • cis-retinal
  • trans-retinal

5. What is the function of the conjunctiva?

  • It controls the amount of light entering the eye.
  • It protects the cornea from damage.
  • It focuses incoming light rays onto the retina.

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