A comprehensive study and exam-tips package for Cambridge International AS & A Level Biology (9700), featuring a detailed assessment profile, actionable HTML strategy guide, common examiner-reported pitfalls, and mathematical calculation methods.
読了時間 3 分更新日: 2026年6月21日
試験の概要
試験数
5
満点
270
制限時間
7時間 45分
出題形式
3
試験
時間
配点
問題数
配点比率
出題形式
Paper 1: Multiple Choice
1時間 15分
40
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Paper 2: AS Level Structured Questions
1時間 15分
60
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Paper 3: Advanced Practical Skills
2時間
40
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Paper 4: A Level Structured Questions
2時間
100
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Paper 5: Planning, Analysis and Evaluation
1時間 15分
30
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評価段階
A*ABCDEU
電卓の規定
A silent scientific calculator is required where the syllabus permits one. It must NOT be graphical, programmable, or capable of symbolic algebra (CAS), and it must contain no stored programs or notes.
AO1: AO1 Knowledge with understanding
AO2: AO2 Handling information and solving problems
AO3: AO3 Experimental skills and investigations
過去問と採点基準にもとづいて作成（2023–2025）。
電卓プログラム
Table mode for roots & turning points
Scientific calculator (e.g. Casio fx-991 series)
目的: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
使う場面: Solving or sketching a function when you want to find where its graph crosses or turns.
手順
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
試験での注意: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
目的: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
使う場面: Any data-handling, statistics, or required-practical analysis question.
手順
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
試験での注意: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
目的: Keep full-precision intermediate values to avoid rounding errors.
使う場面: Multi-step calculations where premature rounding loses the final accuracy mark.
手順
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
試験での注意: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
目的: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
使う場面: As a check only, after solving by hand.
手順
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
試験での注意: Allowed, but the calculator must be silent, non-graphical, non-programmable and free of stored content; always show the working the mark scheme requires.
よくあるミス
1high影響する配点: 2The microscope in cell studies (Cell structure)
Failing to convert units (such as millimeters to micrometers) before calculating magnification or actual size.
回避方法: Always measure your image in millimeters, multiply by 1000 to convert to micrometers, and then apply the magnification formula.
2high影響する配点: 1Transport in mammals
Stating that arteries 'contract and relax' to withstand blood pressure fluctuations.
回避方法: Clarify that elastic fibers in arteries stretch and recoil to maintain blood pressure, whereas smooth muscle contracts to cause vasoconstriction.
3medium影響する配点: 1Testing for biological molecules (Biological molecules)
Using imprecise, non-scientific terms like 'average' and 'amount' in practical and planning investigations.
回避方法: Use standard scientific terms: 'mean' instead of 'average', 'volume' or 'concentration' instead of 'amount', and 'mean' instead of 'general trend'.
4high影響する配点: 3Structure of transport tissues (Transport in plants)
Using shading, sketched lines, or drawing individual cells in low-power plan tissue diagrams during practical exams.
回避方法: Draw only the tissue boundaries using a sharp HB pencil with clean, continuous, single lines and absolutely no shading.
5medium影響する配点: 1Cell membranes and transport (Biology (AS Level))
Describing active transport or facilitated diffusion without stating the direction of solute movement.
回避方法: Always state from where to where the ions or molecules are moving (e.g., from the cytoplasm to the extracellular environment, or down a concentration gradient).
6high影響する配点: 3Selection and evolution (Biology (A Level))
Failing to explicitly compare the calculated statistical value to the critical value in t-test or correlation questions.
回避方法: State the critical value from the provided table at p = 0.05, specify the degrees of freedom, and explicitly state whether the calculated value is greater than or less than the critical value to accept or reject the null hypothesis.