Eyes and light quiz

What would happen to your pupils if it's extremely bright outside?

• They would let a lot of light into your eyes

• They would expand and become very large

• They would contract and become very small

• They would close up completely

How are rods different from cones?

• Rods are sensitive to light, while cones can detect color.

• Cones are sensitive to light, while rods can detect color.

• Cones send images to the brain, while rods do not.

• Rods send images to the brain, while cones do not.

Letter A is pointing at the colored layer that surrounds the middle. What is that part called?

• Cornea

• Pupil

• Iris

• Lens

Letter B is pointing at the transparent layer on the outside of the eyeball. What is that part called?

• Cornea

• Pupil

• Iris

• Lens

Letter C is pointing at the opening in the middle of the eye. What is that part called?

• Cornea

• Pupil

• Iris

• Lens

Letter D is pointing at the translucent and convex part inside the eye. What is that part called?

• Optic Nerve

• Retina

• Cornea

• Lens

Letter E is pointing at the layer that lines the back of the eyeball. What is that part called?

• Optic Nerve

• Retina

• Cornea

• Lens

Letter F is pointing at the part that connects the back of the eye to the brain. What is that part called?

• Optic Nerve

• Retina

• Cornea

• Lens

The Cornea is the part that

• Opens and closes to let more or less light in

• Takes light signals from the eye and send it to the brain

• Protects the eye

• Focuses light to the back of the eye

• Absorbs light and creates images

The Optic Nerve is the part that

• Opens and closes to let more or less light in

• Takes light signals from the eye and send it to the brain

• Protects the eye

• Focuses light to the back of the eye

• Absorbs light and creates images