19-4 Seeing Light

Identify the part of the eye labeled as 1 on the diagram.

• pupil

• cornea

• lens

• iris

Identify the part of the eye labeled as 2 on the diagram.

• iris

• pupil

• lens

• cornea

Identify the part of the eye labeled as 3 on the diagram.

• pupil

• cornea

• lens

• iris

Identify the part of the eye labeled as 4 on the diagram.

• lens

• pupil

• iris

• cornea

Identify the part of the eye labeled as 5 on the diagram.

• retina

• optic nerve

• pupil

• lens

Identify the part of the eye labeled as 6 on the diagram.

• optic nerve

• retina

• lens

• pupil

What do you call the hole in which light enters the eye?

• pupil

• cornea

• cones

• iris

What are cells in the retina that respond to color?

• cones

• rods

• pupil

• iris

What do you call the transparent front surface of the eye?

• cornea

• iris

• retina

• pupil

Which type of vision allows you to see distance clearly but nearby objects appear blurry?

• farsighted

• nearsighted