Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY
Higher Tier Paper 1H
H
Tuesday 13 May 2025 Afternoon Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions in the spaces provided.
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want
8
to be marked.
• In all calculations, show clearly how you work out your answer. TOTAL
Information
• The maximum mark for this paper is 100.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation
in your answers.
*jun2584611H01*
IB/G/Jun25/G4006/E10 8461/1H
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 Measles is an infectious disease caused by a pathogen.
0 1 . 1 What type of pathogen causes measles?
[1 mark]
0 1 . 2 Give one way measles is spread from one person to another person.
[1 mark]
0 1 . 3 One symptom of measles is pain.
In adults, aspirin can be used to treat the pain.
Which plant did aspirin originate from?
[1 mark]
0 1 . 4 Give one other symptom of measles.
Do not refer to pain in your answer.
[1 mark]
*02*
IB/G/Jun25/8461/1H
, 3
Do not write
outside the
The spread of measles can be reduced by vaccination. box
0 1 . 5 Explain why vaccinating large numbers of children helps to reduce the spread of the
measles pathogen in the population.
[2 marks]
Question 1 continues on the next page
Turn over ►
*03*
IB/G/Jun25/8461/1H
, 4
Do not write
outside the
Figure 1 shows information about the severity of measles infection in vaccinated and box
unvaccinated children.
Figure 1
0 1 . 6 There were 240 children in the survey.
Calculate how many unvaccinated children had a severe measles infection.
Use Figure 1.
[3 marks]
Number of unvaccinated children =
*04*
IB/G/Jun25/8461/1H
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
GCSE
BIOLOGY
Higher Tier Paper 1H
H
Tuesday 13 May 2025 Afternoon Time allowed: 1 hour 45 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Pencil should only be used for drawing. 4
• Fill in the boxes at the top of this page.
5
• Answer all questions in the spaces provided.
• If you need extra space for your answer(s), use the lined pages at the end of 6
this book. Write the question number against your answer(s). 7
• Do all rough work in this book. Cross through any work you do not want
8
to be marked.
• In all calculations, show clearly how you work out your answer. TOTAL
Information
• The maximum mark for this paper is 100.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation
in your answers.
*jun2584611H01*
IB/G/Jun25/G4006/E10 8461/1H
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 Measles is an infectious disease caused by a pathogen.
0 1 . 1 What type of pathogen causes measles?
[1 mark]
0 1 . 2 Give one way measles is spread from one person to another person.
[1 mark]
0 1 . 3 One symptom of measles is pain.
In adults, aspirin can be used to treat the pain.
Which plant did aspirin originate from?
[1 mark]
0 1 . 4 Give one other symptom of measles.
Do not refer to pain in your answer.
[1 mark]
*02*
IB/G/Jun25/8461/1H
, 3
Do not write
outside the
The spread of measles can be reduced by vaccination. box
0 1 . 5 Explain why vaccinating large numbers of children helps to reduce the spread of the
measles pathogen in the population.
[2 marks]
Question 1 continues on the next page
Turn over ►
*03*
IB/G/Jun25/8461/1H
, 4
Do not write
outside the
Figure 1 shows information about the severity of measles infection in vaccinated and box
unvaccinated children.
Figure 1
0 1 . 6 There were 240 children in the survey.
Calculate how many unvaccinated children had a severe measles infection.
Use Figure 1.
[3 marks]
Number of unvaccinated children =
*04*
IB/G/Jun25/8461/1H
