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GCSE BIOLOGY (9–1): Actual May 2025 PAST PAPER 1: Higher Tier. All Assessment Questions & Mark Scheme [Edexcel 1BI0/1H]

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GCSE BIOLOGY (9–1): Actual May 2025 PAST PAPER 1: Higher Tier. All Assessment Questions & Mark Scheme [Edexcel 1BI0/1H] Exam Resource Summary The GCSE Biology (9–1) May 2025 Paper 1: Higher Tier [Edexcel 1BI0/1H] – All Assessment Questions & Mark Scheme provides the full examination paper along with its official mark scheme. It assesses students’ knowledge and understanding of advanced biology concepts, practical skills, and the application of scientific reasoning. Each question is accompanied by detailed marking guidance, giving clear insight into examiner expectations and strategies for high-scoring answers. This resource is essential for targeted revision, self-assessment, and preparation for the May 2026 Edexcel GCSE Biology Paper 1 (Higher Tier) examination. Turn over Answer ALL questions. Write your answers in the spaces provided. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer with a cross . 1 (a) Figure 1 shows a percentile chart for the height of boys from age 2 to age 16. height in cm 190 180 170 160 150 140 130 120 110 100 90 80 2 4 6 8

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GCSE BIOLOGY (9–1): Actual May 2025 PAST PAPER 1: Higher Tier. All Assessment
Questions & Mark Scheme [Edexcel 1BI0/1H]
Exam Resource Summary

The GCSE Biology (9–1) May 2025 Paper 1: Higher Tier [Edexcel 1BI0/1H] – All Assessment
Questions & Mark Scheme provides the full examination paper along with its official mark scheme. It
assesses students’ knowledge and understanding of advanced biology concepts, practical skills, and the
application of scientific reasoning. Each question is accompanied by detailed marking guidance, giving
clear insight into examiner expectations and strategies for high-scoring answers. This resource is
essential for targeted revision, self-assessment, and preparation for the May 2026 Edexcel GCSE
Biology Paper 1 (Higher Tier) examination.



Turn over

, Answer ALL questions. Write your answers in the spaces provided.

Some questions must be answered with a cross in a box . If you change your mind about an




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answer, put a line through the box and then mark your new answer with a cross .

1 (a) Figure 1 shows a percentile chart for the height of boys from age 2 to age 16.

190 98th
90th
180 75th
50th
170 25th
10th
160 5th

150

140
height
in cm
130




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120

110

100

90

80
2 4 6 8 10 12 14 16 18

age in years

Figure 1

(i) Which is the height of an 8‑year‑old boy on the 10th percentile?
(1)
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A 118 cm
B 120 cm

C 128 cm

D 130 cm




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, (ii) The height of a 4‑year‑old boy was 94 cm.

Two years later, his height was 106 cm.
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Using Figure 1, explain the conclusion that can be made about the growth of
this child.
(2)

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. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. . .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................




(b) Fats are needed for energy.
(i) Describe how a sample of food can be tested to show that it contains fat.
(2)
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. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. . . ... .. .. ... .. .. ... .. ... .. .. . ......................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. . .. .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . ......................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. . . ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . ......................




(ii) Which is produced when fats are digested?
(1)
A amino acids
B fatty acids

C glucose
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D starch


(c) State what calorimetry is used to measure.
(1)

. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................


(Total for Question 1 = 7 marks)




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■■■■ Turn over

, 2 (a) Tuberculosis is a disease that is spread through airborne droplets.
Give two ways of reducing or preventing the spread of tuberculosis.




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(2)

1 . .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . .................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... . . .. ... .. .. ... .. ... .. .. . ......................



2 . .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. . . .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . .................



. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... . . .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . ......................



(b) Obesity is a risk factor for some non‑communicable diseases.
(i) State why liver disease is a non‑communicable disease.
(1)

. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................




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(ii) The waist‑to‑hip ratio can be used to show if excess weight is a health risk.

An adult has a waist measurement of 80 cm and a hip measurement of 90 cm.

Calculate the waist‑to‑hip ratio for this adult, using the equation:
waist measurement
waist‑to‑hip ratio =
hip measurement
Give your answer to two decimal places.
(2)




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waist‑to‑hip ratio ..............................................................




4

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