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Paper 4 styleExtended

Paper 4 style: structured questions (Extended)

Eight original structured questions with full mark schemes, worth 80 marks in the style of the Extended theory paper, spanning cells, physiology, inheritance, ecology and biotechnology.

Modelled on Cambridge IGCSE Biology Paper 4 (Structured Questions, Extended). These are original QuizQuip questions written against the 0610 syllabus — not Cambridge past-paper questions.

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Total marks
80
Time
1 h 20 min
Format
4 MCQ + 4 structured
Covers
Core and Supplement statements across the seventeen 0610 topics

Set

The paper and mark scheme

Question paper

Paper 4 style practice paper

80 marks · 1 h 20 min · 7 pages

4 multiple-choice questions and structured questions with answer lines. Core and Supplement statements across the seventeen 0610 topics.

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Mark scheme

PRO

Paper 4 style practice paper — mark scheme

Answers · Marking points · 5 pages

Model answers with a mark for each creditworthy point — for marking at home or in class.

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Coverage

Topics in this paper

How to use

Work through it like the real exam

  1. 1Print the paper, or open the PDF and write your answers on paper.
  2. 2Set a timer and work without notes — the real thing is timed and closed-book.
  3. 3Mark your work with the mark scheme, one point at a time.
  4. 4Redo every question you lost marks on, then revise that topic.

Preview

The opening questions

Section A: Structured questions[40 marks]

Answer all questions in the spaces provided.

  1. 1

    Diagrams show three cells: a leaf palisade cell, a human skin cell and a bacterial cell.

    1. (a)

      Name one structure visible in the palisade cell that is missing from the skin cell, and state its function.

      [2]
    2. (b)

      Name two structures that the bacterial cell shares with the other two cells.

      [2]
    3. (c)

      The palisade cell image is 12 mm wide at ×600 magnification. Calculate the actual width of the cell in mm.

      [2]
    4. (d)

      State the term for the level of organisation that a group of similar cells working together represents.

      [2]
  2. 2

    The enzyme amylase digests starch to maltose. A student investigates amylase activity at different pH values, keeping temperature and enzyme concentration constant.

    1. (a)

      State the variable that was changed and two variables that were controlled.

      [3]
    2. (b)

      Describe how iodine solution could be used to measure how quickly the starch is digested.

      [3]
    3. (c)

      Predict and explain the amylase activity at pH 2 compared with its optimum around pH 7.

      [4]
  3. 3

    A student uses a potometer to investigate water uptake by a leafy shoot. The distance the air–water boundary moves is recorded over five minutes at different air humidities.

    1. (a)

      Explain why water uptake by the shoot is an estimate of the rate of transpiration.

      [2]
    2. (b)

      Predict and explain the effect of increasing the humidity of the air around the shoot.

      [3]
    3. (c)

      State two other variables the student should control.

      [2]
    4. (d)

      The boundary moves 45 mm in 5 minutes; the capillary tube has a cross-sectional area of 2.0 mm². Calculate the rate of water uptake in mm³ per minute.

      [3]
  4. 4

    The mammalian heart and circulation.

    1. (a)

      Explain why the wall of the left ventricle is thicker than the wall of the right ventricle.

      [3]
    2. (b)

      Describe the path of a red blood cell from the vena cava to the aorta, naming each chamber and vessel in order.

      [4]
    3. (c)

      State the function of platelets and describe, using fibrinogen and fibrin, how a clot forms.

      [5]
Open the full paper

Revision

Before you sit the paper

  • Revise every topic this paper covers, using the free notes pages.
  • Do the quick quiz on each topic and note where you lose marks.
  • Practise the topical questions with the mark schemes.
  • Read the command words: state, describe, explain, calculate.

Tips

Exam tips

Marks come from key words

  • Give the number of marks’ worth of points the question asks for.
  • Quote the equation, substitute the values, then give the answer with its unit.
  • Check every quantity is in SI units before you substitute.
  • In Paper 6-style questions, write the observation, not the conclusion.

Questions

About the Paper 4 style

How is this Paper 4 style set structured?

Eight structured questions worth 80 marks in total, mixing Core and Supplement demands across the whole syllabus, each part with model answers and marking points so you can self-mark like an examiner.

How should I mark my answers?

Award marks only for the marking points listed — if a point is not on the list, it usually earns nothing. Count your total, then focus revision on the topics where you lost the most marks.

Is QuizQuip connected to Cambridge?

No. Cambridge IGCSE and Cambridge are trademarks of Cambridge University Press & Assessment. QuizQuip is independent — not affiliated with, endorsed by, or connected to Cambridge. All our questions are original material written against the published 0610 syllabus.