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FORM 3 - STRUCTURE OF EYE PART 3

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

Transparent layer which refracts and focuses light onto the retina

a)

cornea

b)

retina

c)

pupil

d)

aqueous humour

2.

muscle that changes the thickness of the eye lens through contractions and relaxations

a)

eye lens

b)

iris

c)

cornea

d)

ciliary muscle

3.

part of retina that is most sensitive to light. it has many photoreceptors

a)

iris

b)

suspensory ligament

c)

yellow spot

d)

vitreous humour

4.

part of retina that is not sensitive to light. it has no photoreceptor

a)

yellow spot

b)

optic nerve

c)

ciliary muscle

d)

blind spot

5.

strong layer that protects the shape of eyeball

a)

sclera

b)

retina

c)

pupil

d)

choroid

6.

black layer that prevents reflection of light and supplies oxygen and nutrient to the eye

a)

sclera

b)

retina

c)

cornea

d)

choroid

7.

transparent and elastic convex lens to focus light onto retina

a)

retina

b)

sclera

c)

lens

d)

ciliary muscle

8.

retina

a)

contracts and relaxes to change the thickness of the eye lens

b)

layer containing photoreceptors to detect light and produces nerve impulse

c)

opening in the centre of the iris

d)

black layer that prevents reflection of light and supply oxygen and nutrients to the eye

9.

sclera

a)

black layer the prevent reflection and supply oxygen to the eyeball

b)

have photoreceptors to detect light and produces impulse

c)

carry impulse from the retina to the brain

d)

strong layer to maintain the shape and protect the eye

10.

iris

a)

coloured part of the eye that controls the opening of pupil

b)

transparent layer that refracts light and focuses light onto retina

c)

muscle that changes the thickness of the lens

d)

transparent fluid that maintain the shape of the eyeball

11.

aqueous humour

a)

strong layer that maintain the shape and protects the eye

b)

transparent fluid that maintain the shape of the eyeball

c)

transparent membrane that protects the front part of sclera

d)

strong fibres that hold lens in position

12.

conjunctiva

a)

transparent membrane that protects the front part of sclera

b)

black layer that prevents reflection and supply oxygen and nutrient to the eye

c)

transparent fluid that maintain the shape of the eyeball

d)

a layer that consist of many photoreceptors

13.

protects the eye ball

a)

retina

b)

sclera

c)

choroid

d)

pupil

14.

maintain the shape of the eye ball

a)

conjunctiva

b)

aqueous humour

c)

yellow spot

d)

optic nerves

15.

an opening that control the light entering the eye

a)

ciliary muscle

b)

suspensory ligaments

c)

pupil

d)

blind spot