Light and Human Eye

31. The colored part of the eye is called the:

a) Cornea

b) Iris

c) Pupil

d) Lens

32. The opening in the center of the iris through which light enters the eye is called the:

a) Cornea

b) Iris

c) Pupil

d) Lens

33. The part of the eye that converts light into electrical signals is the:

a) Cornea

b) Iris

c) Pupil

d) Retina

34. The bundle of nerve fibers that carries visual information from the retina to the brain is called the:

a) Cornea

b) Iris

c) Pupil

d) Optic nerve

35. The tough, white outer layer of the eye is called the:

a) Cornea

b) Iris

c) Sclera

d) Retina