This comprehensive study and exam-tips package provides students with strategic techniques for tackling the Pearson Edexcel GCSE (9-1) Biology exam, highlighting common pitfalls in command words, calculations, and biological terminology. Grounded in examiner feedback from 2022 to 2024, it helps candidates secure maximum marks by mastering key concepts and structured descriptions.
อ่าน 6 นาทีอัปเดตเมื่อ: 21 มิ.ย. 2569
ภาพรวมข้อสอบ
จำนวนฉบับ
2
คะแนนเต็ม
200
เวลาสอบ
3ชม. 30นาที
ประเภทคำถาม
4
ฉบับ
เวลา
คะแนน
จำนวนข้อ
น้ำหนักคะแนน
ประเภทคำถาม
Paper 1 (Foundation Tier)
1ชม. 45นาที
100
10
50%
Recall and Short Response (1-2 marks), Structured Explanations (3-4 marks), Extended Quality of Written Communication (6 marks)
Paper 2 (Foundation Tier)
1ชม. 45นาที
100
10
50%
Recall and Short Response (1-2 marks), Structured Explanations (3-4 marks), Extended Quality of Written Communication (6 marks)
เกณฑ์เกรด
987654321U
ข้อกำหนดเครื่องคิดเลข
A scientific or graphical calculator that meets JCQ regulations may be used (some GCSE Mathematics and Science papers are non-calculator). Graphical calculators must be set to exam mode; you must clear any stored programs, notes or data before the exam, and the calculator must not be able to retrieve stored text or formulae.
AO1: AO1: Demonstrate knowledge and understanding of scientific ideas, techniques and procedures (40%)
AO2: AO2: Apply knowledge and understanding of scientific ideas, enquiry, techniques and procedures (40%)
AO3: AO3: Analyse information and ideas to interpret and evaluate, make judgements and draw conclusions, and develop and improve experimental procedures (20%)
วัตถุประสงค์: Tabulate \(y\) across a range of \(x\) to locate sign changes (roots) and approximate maxima/minima.
ใช้เมื่อใด: Solving or sketching a function when you want to find where its graph crosses or turns.
ขั้นตอน
Enter the function in TABLE mode, set the start, end and step, then read where the sign of \(y\) changes or where it peaks.
ข้อควรระวังในการสอบ: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Statistics mode (mean, SD & regression)
Scientific calculator (e.g. Casio fx-991 series)
วัตถุประสงค์: Read the mean \(\bar{x}\) and standard deviation directly, and the gradient/intercept (and \(r\)) of a linear regression for bivariate data.
ใช้เมื่อใด: Any data-handling, statistics, or required-practical analysis question.
ขั้นตอน
Enter the data in STAT mode (1-VAR or A+BX), then recall \(\bar{x}\), \(\sigma\) or the regression coefficients.
ข้อควรระวังในการสอบ: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Carry exact values with Ans & memory
Scientific calculator (e.g. Casio fx-991 series)
วัตถุประสงค์: Keep full-precision intermediate values to avoid rounding errors.
ใช้เมื่อใด: Multi-step calculations where premature rounding loses the final accuracy mark.
ขั้นตอน
Use Ans, STO/RCL or the M+ memory to reuse the unrounded result of each step; round only the final answer.
ข้อควรระวังในการสอบ: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
Equation solver — to CHECK your working
Scientific calculator (e.g. Casio fx-991 series)
วัตถุประสงค์: Use the built-in EQN/SOLVE mode to verify roots of quadratics or simultaneous equations you have already solved by algebra.
ใช้เมื่อใด: As a check only, after solving by hand.
ขั้นตอน
Enter the coefficients in EQN mode (or use SOLVE) and confirm they match your worked solution.
ข้อควรระวังในการสอบ: Allowed under JCQ rules, but you must still show your method — an unsupported calculator answer earns no method marks. Clear all stored programs, notes and data (graphical calculators in exam mode) before the exam.
ข้อผิดพลาดที่พบบ่อย
1highคะแนนที่เกี่ยวข้อง: 2Key concepts in biology (Paper 1)
Stating that enzymes are 'killed' at high temperatures or extreme pH.
วิธีหลีกเลี่ยง: Always write that enzymes are 'denatured' and explain that the active site has changed shape, preventing the substrate from fitting/binding.
2highคะแนนที่เกี่ยวข้อง: 1Cells and control (Paper 1)
Confusing corrective lens types for myopia, recommending a convex/converging lens.
วิธีหลีกเลี่ยง: Remember that a concave (diverging) lens is required to correct short-sightedness (myopia), while a convex lens is used for long-sightedness.
3highคะแนนที่เกี่ยวข้อง: 1Key concepts in biology (Paper 2)
Failing to explicitly round calculated numbers to the requested decimal place (e.g., leaving 7.28 instead of 7.3).
วิธีหลีกเลี่ยง: Always carefully read the final sentence of calculation questions and apply the requested rounding (e.g., 'to 1 decimal place' or 'to the nearest whole number').
4mediumคะแนนที่เกี่ยวข้อง: 2Cells and control (Paper 1)
Confusing iris muscles with ciliary muscles in explanations of pupil size and accommodation.
วิธีหลีกเลี่ยง: The iris muscles (radial and circular) control the pupil's response to light levels, whereas the ciliary muscles (and suspensory ligaments) alter lens shape to focus on objects at different distances.
5highคะแนนที่เกี่ยวข้อง: 2Key concepts in biology (Paper 1)
Omitting key quantitative controls in experiment 'devise' or 'plan' prompts.
วิธีหลีกเลี่ยง: Always specify exact variables that must be controlled, such as using the same volumes, same concentrations, or same starting temperatures of solutions.
6mediumคะแนนที่เกี่ยวข้อง: 2Key concepts in biology (Paper 2)
Stating that root hair cells contain chloroplasts.
วิธีหลีกเลี่ยง: Explain that root hair cells grow underground without light; because they cannot photosynthesise, they lack chloroplasts completely.
7mediumคะแนนที่เกี่ยวข้อง: 1Cells and control (Paper 1)
Stating that human somatic cells have 23 chromosomes in mitosis.
วิธีหลีกเลี่ยง: Remember that human body cells contain 46 chromosomes (23 pairs); only gametes produced during meiosis contain 23 chromosomes.
8highคะแนนที่เกี่ยวข้อง: 1Key concepts in biology (Paper 1)
Omitting the heating/boiling step when describing Benedict's test for reducing sugars.
วิธีหลีกเลี่ยง: Ensure you state that the sample mixed with Benedict's solution must be heated or placed in a boiling water bath for the reaction to occur.