A-level
BIOLOGY ACTUAL 2025 PAPER MERGED
WITH MARK SCHEME
Paper 3
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
BIOLOGY
Paper 3
Wednesday 18 June 2025 Morning Time allowed: 2 hours
For Examiner’s Use
Question Mark
1
2
3
4
5
, 2
Do not write
outside the
box
Materials 6
For this paper you must have:
• a ruler with millimetre measurements • a scientific calculator. 7
Instructions TOTAL
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page.
• Answer all questions in Section A.
• Answer one question from Section B.
• You must answer the questions in the spaces provided. Do not write outside the box around each
page or on blank pages.
• If you need extra space for your answer(s), use the lined pages at the end of this book. Write the
question number against your answer(s).
• Show all your working.
• Do all rough work in this book. Cross through any work you do not want to be marked.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 78.
*jun257402301* 7402/3
IB/M/Jun25/G4007/V7
IB/M/Jun25/7402/3
, 3
Do not write
outside the
box
There are no questions printed on this page
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
Turn over ►
IB/M/Jun25/7402/3
, 4
Do not write
outside the
box
*02*
Section A
Answer all questions in this section.
You are advised to spend no more than 1 hour and 15 minutes on this section.
IB/M/Jun25/7402/3
BIOLOGY ACTUAL 2025 PAPER MERGED
WITH MARK SCHEME
Paper 3
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
A-level
BIOLOGY
Paper 3
Wednesday 18 June 2025 Morning Time allowed: 2 hours
For Examiner’s Use
Question Mark
1
2
3
4
5
, 2
Do not write
outside the
box
Materials 6
For this paper you must have:
• a ruler with millimetre measurements • a scientific calculator. 7
Instructions TOTAL
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page.
• Answer all questions in Section A.
• Answer one question from Section B.
• You must answer the questions in the spaces provided. Do not write outside the box around each
page or on blank pages.
• If you need extra space for your answer(s), use the lined pages at the end of this book. Write the
question number against your answer(s).
• Show all your working.
• Do all rough work in this book. Cross through any work you do not want to be marked.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 78.
*jun257402301* 7402/3
IB/M/Jun25/G4007/V7
IB/M/Jun25/7402/3
, 3
Do not write
outside the
box
There are no questions printed on this page
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
Turn over ►
IB/M/Jun25/7402/3
, 4
Do not write
outside the
box
*02*
Section A
Answer all questions in this section.
You are advised to spend no more than 1 hour and 15 minutes on this section.
IB/M/Jun25/7402/3
