AS BIOLOGY
ACTUAL 2025
PAPER
MERGED
WITH MARK
SCHEME
Paper 2
Please write clearly in block capitals.
Candidate number
Centre number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS BIOLOGY
Paper 2 For Examiner’s Use
Question Mark
Thursday 22 May 2025 Morning Time allowed: 1 hour 30
1
minutes
2
Materials 3
For this paper you must have:
4
• a ruler with millimetre measurements • a scientific calculator.
5
Instructions
6
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 7
• Answer all questions.
8
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9 more resources
TOTAL
, 2
Do not
write
outside the
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• 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.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 75.
*jun257401201* IB/M/Jun25/G4002/V4
7401/2
• Do all rough work in this book. Cross through any work you do not want to be marked.
Answer all questions in the spaces provided.
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IB/M/Jun25/7401/2
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0 1
Figure 1 shows the arrangement of some of the blood vessels in a mammalian circulatory system.
Figure 1
0 1 .1 Name the blood vessels labelled B and E in Figure 1.
[2 marks]
B
E
0 1
.2 Give the letters of all the blood vessels shown in Figure 1 that transport
deoxygenated
blood.
[1 mark]
Turn over ►
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IB/M/Jun25/7401/2
, 4
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*02*
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IB/M/Jun25/7401/2
ACTUAL 2025
PAPER
MERGED
WITH MARK
SCHEME
Paper 2
Please write clearly in block capitals.
Candidate number
Centre number
Surname
Forename(s)
Candidate signature
I declare this is my own work.
AS BIOLOGY
Paper 2 For Examiner’s Use
Question Mark
Thursday 22 May 2025 Morning Time allowed: 1 hour 30
1
minutes
2
Materials 3
For this paper you must have:
4
• a ruler with millimetre measurements • a scientific calculator.
5
Instructions
6
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of this page. 7
• Answer all questions.
8
tyrionpapers.com for
9 more resources
TOTAL
, 2
Do not
write
outside the
box
• 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.
Information
• The marks for the questions are shown in brackets.
• The maximum mark for this paper is 75.
*jun257401201* IB/M/Jun25/G4002/V4
7401/2
• Do all rough work in this book. Cross through any work you do not want to be marked.
Answer all questions in the spaces provided.
tyrionpapers.com for more resources
IB/M/Jun25/7401/2
, 3
Do not
write
outside the
box
0 1
Figure 1 shows the arrangement of some of the blood vessels in a mammalian circulatory system.
Figure 1
0 1 .1 Name the blood vessels labelled B and E in Figure 1.
[2 marks]
B
E
0 1
.2 Give the letters of all the blood vessels shown in Figure 1 that transport
deoxygenated
blood.
[1 mark]
Turn over ►
tyrionpapers.com for more resources
IB/M/Jun25/7401/2
, 4
Do not
write
outside the
box
*02*
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IB/M/Jun25/7401/2
