The function of the human eye is to _______.

focus light rays to produce images of objects

capture sound waves and convert them to images

capture electrical energy and transform it to brain waves

capture light waves and convert them to mechanical energy

Which of the following characteristics of retina is incorrect ?

has an even distribution of photoreceptors across the layer.

has 2 types of photoreceptors, rod cells and cone cells.

has a blind spot with no photoreceptors.

has sensory neurones attaching to photoreceptors.

Rods are light sensitive cells in the retina that

give you color vision in dim light

give you color vision in bright light

The blind spot is created by the

optic nerve leaving the eye through the retina

What are the functions of eyelids and eyelashes

to protect and rehydrate the eyes

What is the conjunctiva?

a thin, transparent membrane that protects the surface of the eye from dust and particulates

coloured ring of muscle that controls the amount of light entering the eye

helps to focus light onto the retina

attaches the ciliary muscles to the eyeball

increased pressure in the front of the eye due to blocked or altered flow of aqueous humor

the eyeball is too long, or the lens is too thick, so images focus IN FRONT of the retina

age-related loss of accommodation

the eyeball is too short, or the lens is too thin, so images focus BEHIND the retina

an area on the retina with a high concentration of CONE cells

an area on the retina with a high concentration of ROD cells

a hole in the centre of the iris

Which of the following is the correct order in which light travels through the eye?

Cornea, Pupil, Lens, Retina, Optic Nerve

Cornea, Lens, Retina, Pupil, Optic Nerve

Pupil, Cornea, Lens, Retina, Optic Nerve

Cornea, Retina, Lens, Pupil, Optic Nerve

Which of the following is the correct progression of visual processing in the human eye?

rods and cones; bipolar cells; ganglion cells; optic nerve

rods and cones; ganglion cells; bipolar cells; optic nerve

Bipolar cells; ganglion cells; rods; cones

Bipolar cells; rods and cones; ganglion cells; optic nerve

What is the importance of the choroid?

It prevents light from bouncing around the inside of the eye

It refracts light so that it hits the retina

It controls how much light enters the eye

It sends light stimuli to the brain

The Eye and Vision

Authored by Casey Clark

Biology

12th Grade

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the eye is this?

sclera

choroid

retina

ciliary body

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the eye is this?

iris

sclera

ciliary body

cornea

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the eye is this?

cornea

lens

iris

cilicary body

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the eye is this?

cornea

sclera

lens

iris

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What part of the eye is this?

choroid

sclera

retina

ciliary body

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the eye opens in dark places and closes in bright places?

Cornea

Retina

Pupil

Lens

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which part of the eye contains light sensitive nerves?

Cornea

Lens

Retina

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The Eye and Vision

What part of the eye is this?

What part of the eye is this?

What part of the eye is this?

What part of the eye is this?

What part of the eye is this?

Which part of the eye opens in dark places and closes in bright places?

Which part of the eye contains light sensitive nerves?

Opens and closes to adjust the total amount of light entering the eye.

Thin fold of skin that covers and protects the eye.

This part of the eye sends messages to the brain

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