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Science
8th -
9thgrade
Form 3 Chapter 1 Stimuli and Responses (1.2 Eye)
19 questions
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- 1. Multiple Choice
What is true about cornea from our eyeballs?
Transparent layer which refracts and focuses light onto the retina.
The coloured part of the eye which controls the size of the pupil.
Transparent membrane which protects the front part of the sclera.
Strong fibres which hold the eye lens in its position.
- 2. Multiple Choice
What is true about choroid from our eyeballs?
Layer containing photoreceptors which detect light and produces nerve impulses.
Black layer that prevents refraction of light in the eye and supplies oxygen and nutrients to the eye.
Nerve fibres which carry nerve impulses.
Strong layer that maintains the shape of the eye and protects it.
- 3. Multiple Choice
Which of the following characteristics of retina is incorrect?
has 2 types of photoreceptors, rod cells and cone cells.
has an even distribution of photoreceptors across the layer.
has a blind spot with no photoreceptors.
has sensory neurones attaching to photoreceptors.
- 4. Multiple Choice
Which of the following structures are involved to allow a clear image being formed on the yellow spot?
sclera, choroid and retina
cornea, aqueous humour, lens, vitretous humour and retina
cornea, aqueous humour, iris, vitreous humour and retina
- 5. Multiple Choice
What of the consequence if one has cloudy lens is incorrect?
Image is formed on retina.
Blurred image is formed on retina.
No visual sensation is observed.
Visual sensation is impaired.
- 6. Multiple Choice
Which of the following serve(s) as effector(s) of our eyes? (There are total 2 answers)
retina
suspensory ligament
circular iris muscle
ciliary muscle
- 7. Multiple Choice
Name structure A
Pupil
Iris
Cornea
Retina
- 8. Multiple Choice
Name Structure B
Lens
Pupil
Sclera
Cornea
- 9. Multiple Choice
Name structure G
Lens
Pupil
Optic Nerve
Ciliary Muscles
- 10. Multiple Choice
What structure is responsible for carrying sensory impulses from the eye to the brain?
Retina
Iris
Optic Nerve
Rod cells & Cone cells
- 11. Multiple Choice
What will happen to your pupils if you are in a really bright room?
They will contract
They will expand
They will burst into flames
They will stay the same size
- 12. Multiple Choice
What structure of the eye controls the size of the pupils?
Ciliary Muscles
Iris
Lens
Retina
- 13. Multiple Choice
What is the function of the Lens?
Lining of the back of the eye that contains light receptor cells.
Regulates how much light enters the eye
Tough, transparent, protective coating that bends light as it enters the eye
Focuses light onto the retina
- 14. Multiple Choice
Name structure C
Ciliary Muscles
Retina
Optic Nerve
Iris
- 15. Multiple Choice
Name structure F
Sclera
Cornea
Optic Nerve
Lens
- 16. Multiple Choice
Which type of animals are likely to have binocular vision?
Insects
Prey
Predators
Mammals
- 17. Multiple Choice
What happens to your eyes if you are in a dark room?
Your Iris will narrow to allow more light in
Your pupils will widen to let in more light
Your pupils will narrow to let in more light out
- 18. Multiple Choice
Identify structure D
Retina
Optic Nerve
Sclera
Lens
- 19. Multiple Choice
Identify Structure E
Retina
Sclera
Optic Nerve
Lens
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