Biology - Sensory System - MCQ

47 Questions | Total Attempts: 509

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Biology - Sensory System - MCQ - Quiz

Junior Cert Science Multiple Choice Quiz


Questions and Answers
  • 1. 
    The change in an environment to which a body responds is called
    • A. 

      A stimulus

    • B. 

      A response

    • C. 

      A retina

    • D. 

      A ligament

  • 2. 
    The reaction to a stimulus is called
    • A. 

      A response

    • B. 

      A choroid

    • C. 

      A function

    • D. 

      A reply

  • 3. 
    Which one of the following is not a sense organ?  
    • A. 

      Liver

    • B. 

      Eyes

    • C. 

      Ears

    • D. 

      Skin

  • 4. 
    Which one of the following is NOT one of the human senses?
    • A. 

      Nerve

    • B. 

      Taste

    • C. 

      Touch

    • D. 

      Sight

  • 5. 
    Which one of the following is a sense organ?
    • A. 

      Tongue

    • B. 

      Sight

    • C. 

      Smell

    • D. 

      Touch

  • 6. 
    Where are the sense cells found in the eye?
    • A. 

      Retina

    • B. 

      Iris

    • C. 

      Lens 

    • D. 

      Blind spot

  • 7. 
    The part labelled X in the diagram is called the
    • A. 

      Retina

    • B. 

      Blind spot

    • C. 

      Lens

    • D. 

      Cornea

  • 8. 
     What is the function of the iris in the human eye?
    • A. 

      It controls the amount of light entering the eye.

    • B. 

      It focuses light onto the retina.

    • C. 

      It changes the shape of the lens.

    • D. 

      It allows light enter the eye.

  • 9. 
    Where is the sclera located?
    • A. 

      On the outer layer of the eye.

    • B. 

      On the retina.

    • C. 

      On the fovea.

    • D. 

      In the vitreous humour

  • 10. 
    Name the parts labelled X and Y in the diagram
    • A. 

      X = lens, Y = optic nerve

    • B. 

      X = lens, Y = retina

    • C. 

      X = iris, Y = optic nerve

    • D. 

      X = pupil, Y = retina

  • 11. 
    The transparent front part of the eye is called the
    • A. 

      Cornea

    • B. 

      Lens

    • C. 

      Pupil

    • D. 

      Iris

  • 12. 
    The coloured part of the eye is called the
    • A. 

      Iris

    • B. 

      Retina

    • C. 

      Choroid

    • D. 

      Pupil

  • 13. 
    Name the jelly-like parts of the eye labelled in the diagram
    • A. 

      A = aqueous humour, B = vitreous humour

    • B. 

      A = vitreous humour, B = aqueous humour

    • C. 

      A = aqueous humour, B = lens

    • D. 

      A = vitreous humour, B = pupil

  • 14. 
     What part of the eye focusses light onto the retina?  
    • A. 

      Lens

    • B. 

      Pupil

    • C. 

      Iris

    • D. 

      Retina

  • 15. 
     Name the parts labelled X and Y in the diagram
    • A. 

      X = iris, Y = optic nerve

    • B. 

      X = iris, Y = fovea

    • C. 

      X = optic nerve, Y = iris

    • D. 

      X = pupil, Y = blind spot

  • 16. 
    The outermost transparent layer of the eye is called the 
    • A. 

      Sclera

    • B. 

      Iris

    • C. 

      Fovea

    • D. 

      Pupil

  • 17. 
    The middle part of the eye containing blood vessels is called the  
    • A. 

      Choroid

    • B. 

      Pupil

    • C. 

      Vitreous humour

    • D. 

      Optic nerve

  • 18. 
    The coloured part of the eye that controls the amount of light entering is called the  
    • A. 

      Iris

    • B. 

      Pupil

    • C. 

      Lens

    • D. 

      Sclera

  • 19. 
     The lens focusses light onto the retina by changing its shape. What causes it to change shape?  
    • A. 

      Ciliary muscles

    • B. 

      Fovea

    • C. 

      Iris

    • D. 

      Cornea

  • 20. 
     The light receptor cells in the eye are located in the
    • A. 

      Retina

    • B. 

      Blind spot

    • C. 

      Pupil

    • D. 

      Cornea

  • 21. 
    The diagram shows the human eye.  Give the function of the cornea
    • A. 

      To allow light into the eye.

    • B. 

      To carry nerve impulses to the brain.

    • C. 

      To change the shape of the lens.

    • D. 

      To detect light.

  • 22. 
    The diagram shows the human eye.  What is the function of the ciliary muscle?
    • A. 

      To change the shape of the lens.

    • B. 

      To allow light into the eye.

    • C. 

      To carry nerve impulses to the brain.

    • D. 

      To detect light

  • 23. 
    What is the function of the pupil?
    • A. 

      To allow light enter the eye.

    • B. 

      To control the amount of light entering the eye.

    • C. 

      To change the shape of the lens.

    • D. 

      To focus light onto the retina.

  • 24. 
    The pupil of the human eye is transparent. Why does the pupil appear to be black in most situations?
    • A. 

      Because most of the light entering the eye is absorbed.

    • B. 

      Because light cannot travel through the vitreous humour.

    • C. 

      Because the lens does not let light pass back out.

    • D. 

      Because the light does not have enough energy.

  • 25. 
    The diagram is of the human eye. Name the part labelled A.  
    • A. 

      Lens

    • B. 

      Iris

    • C. 

      Fovea

    • D. 

      Blind spot

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