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Biology µGCSE:

The Eye

10 quick questions - for GCSE and iGCSE


 

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10 minutes maximum! (can you do it in 5?)
1. The eye is a sense organ. Sense organs have receptors that detect changes in the environment.

Which word describes one of these changes in the environment that is detected?

  • A. An effector
  • B. A neuron
  • C. An affector
  • D. A stimulus

2-6: The image shows a cross section of a mammalian eye:

mamallian eye

 

2. Structure X is the ...
  • A. iris
  • B. lens
  • C. retina
  • D. optic nerve
3. Structure Y is the ...
  • A. sclera
  • B. suspensory ligaments
  • C. retina
  • D. ciliary Muscles
4. Which structure first refracts the light as it enters the eye?
  • A. Cornea
  • B. Lens
  • C. Conjunctiva
  • D. Pupil

5. Where in the eye are the light receptors found?

  • A. structure K
  • B. structure L
  • C. structure M
  • D. structure N
6. If structure M is damaged ...
  • A. light rays do not reach the retina
  • B. light rays do not stimulate receptor cells
  • C. nervous impulses from light receptors may not reach the brain
  • D. we cannot hear sounds

 

7+8: The image shows a person's pupil in a dark room. The person leaves the room and goes outside where the sun is shining brightly.   

eye vector image

7. Which row in the following table shows their pupil size correctly in the two different locations?

  Dark Room In Sunshine
A. pupil large pupil large
B. pupil small pupil small
C. pupil small pupil large
D. pupil large pupil small

 

8. This reflex response ...

  • A. protects the receptor cells in the retina from damage
  • B. ensures that the receptor cells receive enough light energy
  • C. is controlled by hormones
  • D. is controlled by impulses from the brain

9. Which of the following is the correct combination for viewing a distant object?

  • A. Ciliary muscles contract, suspensory ligaments pulled tight, lens flattens
  • B. Ciliary muscles contract, suspensory ligaments loosen, lens bulges
  • C. Ciliary muscles relax, suspensory ligaments pulled tight, lens bulges
  • D. Ciliary muscles relax, suspensory ligaments pulled tight, lens flattens

10. The retina has two types of receptor cells, rods and cones. 

Which statement is true?

  • A. Rods are sensitive to the wavelength of light
  • B. Cones are sensitive to both the intensity and the wavelength of light
  • C. Rods are sensitive to the intensity of light
  • D. Cones are sensitive to the intensity of light