$CATEGORY: Science - Khan Academy/11.Human Eye and Colourful World/11.Human Eye and Colourful World--The Human Eye

//Multiple Choice

Which part of the eye controls the amount of light entering the eye? {
    ~Lens
    =Iris
    ~Retina
    ~None of the above
}

What is the function of the optic nerve? {
    ~To control the amount of light
    ~To focus light onto the retina
    =To transmit visual information to the brain
    ~None of the above
}

Which of the following is a transparent, jelly-like substance that fills the large chamber of the eye? {
    ~Aqueous humor
    =Vitreous humor
    ~Iris
    ~None of the above
}

The retina is sensitive to\: {
    =Light
    ~Sound
    ~Pressure
    ~None of the above
}

The transparent layer in the front of the eye that helps focus light is the\: {
    ~Iris
    =Cornea
    ~Lens
    ~None of the above
}

//True or False

The pupil is the part of the eye that focuses light onto the retina. {F}

The vitreous humor is a transparent jelly-like substance that helps maintain the shape of the eye. {T}

The cornea is responsible for changing the shape of the lens. {F}

The retina contains photoreceptor cells that respond to light. {T}

The aqueous humor is located between the lens and the retina. {F}

//Fill in the blanks



//Numericals



//Match the following

Match the following items from Column A with their correct corresponding options from Column B\:
{
=Retina -> Light-sensitive layer of the eye
=Iris -> Controls the amount of light entering the eye
=Cornea -> Transparent layer in front of the eye
=Optic nerve -> Sends visual information to the brain
=Vitreous humor -> Jelly-like substance in the back of the eye
}


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