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Chapter 12 Practice Paper: The brain, the eye and temperature control — question paper

QuizQuipPractice Series
QQ/GCSE-BIO/CH12

GCSE (9–1) · GCSE Biology (Foundation and Higher)

Chapter 12 Practice Paper

The brain, the eye and temperature control

Duration: 40 minutes
Total: 30 marks
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READ THESE INSTRUCTIONS FIRST

  • Answer all questions.
  • Section A contains ten multiple-choice questions. Choose one answer, A, B, C or D, for each.
  • Section B contains structured questions. Write your answers in the spaces provided.
  • You may use a calculator.
  • The number of marks is given in brackets [ ] at the end of each question or part question.
  • The total mark for this paper is 30.

Original practice material written for the MOE GCSE Biology syllabus. It is not an official MOE or school examination paper. Chapter 12: brain regions and protection, investigating the brain, eye structure and accommodation, myopia and hyperopia corrections, and thermoregulation.

For Examiner’s Use
Section A/ 10
Section B/ 20
Total/ 30

Section A: Multiple-choice questions[10 marks]

Choose one answer for each question. Each question is worth 1 mark.

  1. 1

    The cerebral cortex is responsible for

    1. Abreathing only
    2. Bbalance
    3. Cmemory and language
    4. Ddigestion
    ( )
  2. 2

    The medulla controls

    1. Areading
    2. Bbalance
    3. Cplaying chess
    4. Dheart rate
    ( )
  3. 3

    The cornea’s job is to

    1. Asecrete tears
    2. Brefract light entering the eye
    3. Cdetect colour
    4. Dstore vitreous humour
    ( )
  4. 4

    For near vision the lens becomes

    1. Athinner
    2. Bopaque
    3. Cflatter
    4. Dthicker
    ( )
  5. 5

    Myopia is corrected with a

    1. Aconvex lens
    2. Bcylinder of glass
    3. Cconcave lens
    4. Dmirror
    ( )
  6. 6

    Long sight focuses near objects

    1. Ain front of the retina
    2. Bbehind the retina
    3. Con the cornea
    4. Din the lens
    ( )
  7. 7

    In dim light the pupil

    1. Acloses fully
    2. Bdisappears
    3. Cturns blue
    4. Ddilates
    ( )
  8. 8

    Skin temperature rising from 30 °C to 33 °C is an increase of

    1. A10%
    2. B3%
    3. C30%
    4. D33%
    ( )
  9. 9

    MRI scanning is used to

    1. Atreat epilepsy
    2. Breplace the medulla
    3. Cimage brain activity
    4. Dclean the skull
    ( )
  10. 10

    Hairs standing up in cold weather

    1. Atrap an insulating air layer
    2. Brelease sweat
    3. Cwiden vessels
    4. Dabsorb sunlight
    ( )

Section B: Structured questions[20 marks]

Answer all questions in the spaces provided.

  1. 11

    This question is about the brain.

    1. (a)

      Name the region damaged if a patient loses coordinated movement and balance.

      [1]
    2. (b)

      Name the two structures that physically protect the central nervous system.

      [2]
    3. (c)

      Describe how MRI scanning helps study the brain.

      [2]
  2. 12

    This question is about focusing the eye.

    1. (a)

      Describe how the lens changes to focus on a nearby object.

      [3]
    2. (b)

      Explain why distant vision needs a thinner lens.

      [2]
    3. (c)

      Name the nerve that carries the focused image’s impulses to the brain.

      [1]
  3. 13

    A woman cannot thread a needle without holding it at arm’s length.

    1. (a)

      Name her eye defect.

      [1]
    2. (b)

      Explain where near-object light focuses in her eye.

      [1]
    3. (c)

      Name the correcting lens and its action.

      [2]
  4. 14

    This question is about thermoregulation.

    1. (a)

      Name the brain centre and one source of temperature information it uses.

      [2]
    2. (b)

      Explain why sweating cools the body.

      [2]
    3. (c)

      State what happens to skin blood vessels when core temperature falls.

      [1]

— End of paper —