Quiz on Human Eye Function

What is the primary function of the human eye?

• To regulate temperature

• To allow us to see

• To help us smell

• To produce sound

What is the first part of the eye that light passes through?

• The lens

• The pupil

• The cornea

• The retina

What is the purpose of the aqueous humor?

• To keep the eye flexible and hydrated

• To change the color of the eye

• To absorb light

• To focus images

What part of the eye controls the amount of light entering?

• The iris

• The cornea

• The retina

• The lens

What shape are human pupils?

• Triangular

• Round

• Slit-shaped

• Square

What is the function of the lens in the eye?

• To absorb sound

• To protect the eye

• To change the color of light

• To focus images onto the retina

What type of cells in the retina detect color?

• Iris

• Pupils

• Cones

• Rods

How many types of cone cells are there?

• Two

• Three

• Four

• Five

What do rod cells primarily detect?

• Color

• Shapes

• Light and dark

• Movement

Where are most cone cells located in the retina?

• At the edges

• In the center

• In the cornea

• In the iris