The Eye

The Eye

Today we are learning the structure of the eye.

Multiple Choice

Photosynthesis happens in the...

• chloroplast

• mitochondria

• nucleus

• cell membrane

Multiple Choice

What is the function of the waxy cuticle?

• pores to allow gases to enter and leave

• waterproof layer to prevent water loss

• air spaces to allow gas exchange

• to look pretty

Multiple Choice

How do plants get carbon dioxide?

• Through the roots

• by photosynthesis

• through the stomata

• through the waxy layer

Open Ended

Define "vision"

Multiple Choice

Which are sensitive to light intensity and colour?

• chloroplasts

• receptors

• stimuli

• opticians

Multiple Choice

Which is defined as a change in the environment?

• Stimuli

• Stoma

• Receptors

• global warming

Multiple Choice

What is the job of the cornea?

• makes light brighter

• focuses light

• directs light into the optic nerve

• Directs light into the iris and lens

Open Ended

What does refraction mean?

Multiple Choice

What is the job of the iris?

• Focuses the light.

• Controls how much light enters the eye.

• It is a hole that light enters.

• Detects stimuli

Multiple Choice

what is the pupil in the eye?

• the coloured part of the eye

• a student

• a hole in the middle of the iris

• a muscle

Open Ended

What does the Iris do in bright light?

Open Ended

What does the iris do in dim light?

Multiple Choice

the lens can create a sharp focus because it is...

• flexible and can change shape

• Rigid

• transparent

• Flexible and opaque

Multiple Choice

The retina is a light sensitive layer of tissue or

• cells

• stimuli

• receptors

• elements

Multiple Choice

What do rod cells detect?

• colour

• light

Multiple Choice

what do cone cells detect?

• light

• colour

Open Ended

What is the optic nerve?

Open Ended

what is the sclera?

Multiple Choice

What is A?

• Iris

• Pupil

• Retina

• Optic nerve

Multiple Choice

What is D?

• sclera

• iris

• lens

• retina

Multiple Choice

What is F?

• Pupil

• Retina

• Sclera

• Cornea

Multiple Choice

what is B?

• Retina

• Pupil

• Iris

• Cornea

Multiple Choice

What is E?

• Sclera

• Optic Nerve

• Retina

• Pupil

Multiple Choice

What is G?

• Iris

• retina

• cornea

• Optic nerve

Multiple Choice

What is C?

• Pupil

• lens

• iris

• cornea

Multiple Choice

Which lens is thinner in the middle?

• concave

• convex

Multiple Choice

which lens is thicker in the middle?

• concave

• convex

Multiple Choice

Which lens causes the rays to diverge?

• convex

• concave

Multiple Choice

which lens causes the rays to converge?

• concave

• convex

Open Ended

what is myopia?

Open Ended

how can you treat myopia?

Open Ended

what is hyperopia?

Open Ended

how can you treat hyperopia?