Comprehensive expert study guide and exam tips package for Cambridge IGCSE Biology (0610), grounded in the 2023-2025 exam reports and official marking schemes.
อ่าน 4 นาทีอัปเดตเมื่อ: 21 มิ.ย. 2569
ภาพรวมข้อสอบ
จำนวนฉบับ
3
คะแนนเต็ม
160
เวลาสอบ
3ชม.
ประเภทคำถาม
3
ฉบับ
เวลา
คะแนน
จำนวนข้อ
น้ำหนักคะแนน
ประเภทคำถาม
Paper 2 (Multiple Choice, Extended)
45นาที
40
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Paper 4 (Theory, Extended)
1ชม. 15นาที
80
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Paper 6 (Alternative to Practical)
1ชม.
40
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—
เกณฑ์เกรด
A*ABCDEFGU
ข้อกำหนดเครื่องคิดเลข
A silent scientific calculator may be used on papers where calculators are permitted (some papers are non-calculator). It must not be graphical or programmable and must hold no stored information.
AO1: Knowledge with understanding (50%)
AO2: Handling information and problem-solving (30%)
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 on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
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 on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
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 on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
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 on papers where a calculator is permitted; use a silent scientific calculator with no stored content and show your method.
ข้อผิดพลาดที่พบบ่อย
1highคะแนนที่เกี่ยวข้อง: 2Enzymes
Stating that high temperatures or extreme pH levels 'kill' enzymes.
วิธีหลีกเลี่ยง: State that high temperatures or extreme pH levels 'denature' enzymes or affect their 'active site shape'.
2highคะแนนที่เกี่ยวข้อง: 1Transpiration
Describing the movement of water during transpiration as 'water' diffusing through air spaces.
วิธีหลีกเลี่ยง: Specify that 'water vapour' (not liquid water) diffuses from the surface of mesophyll cells through the air spaces and out of the stomata.
3highคะแนนที่เกี่ยวข้อง: 1Homeostasis
Confusing the hormone 'glucagon' with the storage carbohydrate 'glycogen' during homeostasis explanations.
วิธีหลีกเลี่ยง: Remember the rule: when glucose is GONE, you need glucaGON (the hormone). Glycogen is the polysaccharide stored in the liver.
4highคะแนนที่เกี่ยวข้อง: 2Size of specimens
Applying sketching lines, stippling, or shading to biological drawings in Paper 5 & 6.
วิธีหลีกเลี่ยง: Draw single, clean, continuous outlines with a sharp HB pencil. Do not shade or stipple any part of the specimen.
5mediumคะแนนที่เกี่ยวข้อง: 1Size of specimens
Writing raw units (like 'mm' or '°C') directly inside the data fields of a results table.
วิธีหลีกเลี่ยง: Keep units strictly within the column and row headers of your results table (e.g., 'Temperature / °C' or 'Time / s'), leaving table body cells as raw numbers.
6mediumคะแนนที่เกี่ยวข้อง: 1Size of specimens
Failing to include a negative sign when calculating percentage decreases.
วิธีหลีกเลี่ยง: Always insert a negative sign (-) in front of your final value if calculating a percentage decrease (e.g., -61.8%), or clearly state the term 'percentage decrease'.
7highคะแนนที่เกี่ยวข้อง: 3Size of specimens
Multiplying by 1000 instead of dividing by 1000 when converting micrometer measurements to millimeters for magnification equations.
วิธีหลีกเลี่ยง: To convert micrometers to millimeters, divide the value by 1000. Ensure both image size and actual size are converted to identical units before division.
8highคะแนนที่เกี่ยวข้อง: 2Pollution
Omitting the role of bacteria and decomposers when describing eutrophication.
วิธีหลีกเลี่ยง: State that bacteria feed on the dead producers and multiply rapidly, consuming dissolved oxygen through aerobic respiration, which suffocates the fish.
9mediumคะแนนที่เกี่ยวข้อง: 2Heart
Misidentifying the anatomical left and right sides of the heart on cardiorespiratory diagrams.
วิธีหลีกเลี่ยง: Remember that anatomical diagrams are drawn from the perspective of the patient facing you. The right ventricle is on the left side of the paper, and the left ventricle is on the right.
10mediumคะแนนที่เกี่ยวข้อง: 1Aerobic respiration
Writing 'air' instead of 'oxygen' when describing the requirements of aerobic respiration.
วิธีหลีกเลี่ยง: Always use the specific gas name 'oxygen' rather than the general term 'air' in respiration equations and descriptions.