Understanding the Human Eye

What is the primary role of organs in the body?

• To provide energy

• To perform specific functions

• To store nutrients

• To protect the body

Which of the following is NOT an organ?

• Bone

• Skin

• Heart

• Brain

What is the main function of the eyes?

• To taste food

• To hear sounds

• To smell

• To see

What part of the eye is responsible for controlling the amount of light that enters?

• Lens

• Retina

• Cornea

• Iris

What is the function of the pupil?

• To process images

• To take in light

• To focus light

• To protect the eye

Where is the lens located in the eye?

• In front of the iris

• Next to the cornea

• Behind the pupil

• On the retina

What is the primary role of the lens in the eye?

• To protect the eye

• To focus light

• To detect colors

• To produce tears

What does the retina do with the light it receives?

• Reflects it back

• Absorbs it

• Turns it into electrical signals

• Magnifies it

How does the brain contribute to vision?

• By moving the eyes

• By interpreting electrical signals

• By changing the eye color

• By generating light

Which part of the eye is responsible for converting light into images?

• Iris

• Retina

• Lens

• Cornea