1
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
Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
• a ruler with millimetre measurements Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Fill in the boxes at the top of this page. 4
• Answer all questions in Section A.
5
• Answer one question from Section B.
• You must answer the questions in the spaces provided. Do not write 6
outside the box around each page or on blank pages. 7
• 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). TOTAL
• 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.
SOLE Property of Tyrion's AQA AL Biology Question Paper 3 2025 Predicted
, 2
Section A
Answer all questions in this section.
You are advised to spend no more than 1 hour and 15 minutes on this section.
0 1 . 1 In the following passage, each numbered space can be filled with a biological term.
Each cell has specific structures that regulate the movement of substances. The (1)
___ actively transports ions, while the (2) ___ allows water to pass through via
osmosis. Proteins involved in transport may act as (3) ___ to move substances
against their concentration gradient.
[3 marks]
1
2
3
0 1 . 2 Explain why facilitated diffusion does not require
energy but active transport does.
[2 marks]
AQA AL Biology Question Paper 3 2025 Predicted
, 3
0 1 . 3 Define osmosis and explain how it differs from simple diffusion.
[3 marks]
0 1 . 4 Describe the role of the cell membrane in regulating the movement of substances
[3 marks]
11
AQA AL Biology Question Paper 3 2025 Predicted
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
Time allowed: 2 hours
Materials
For Examiner’s Use
For this paper you must have:
• a ruler with millimetre measurements Question Mark
• a scientific calculator.
1
Instructions 2
• Use black ink or black ball-point pen. 3
• Fill in the boxes at the top of this page. 4
• Answer all questions in Section A.
5
• Answer one question from Section B.
• You must answer the questions in the spaces provided. Do not write 6
outside the box around each page or on blank pages. 7
• 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). TOTAL
• 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.
SOLE Property of Tyrion's AQA AL Biology Question Paper 3 2025 Predicted
, 2
Section A
Answer all questions in this section.
You are advised to spend no more than 1 hour and 15 minutes on this section.
0 1 . 1 In the following passage, each numbered space can be filled with a biological term.
Each cell has specific structures that regulate the movement of substances. The (1)
___ actively transports ions, while the (2) ___ allows water to pass through via
osmosis. Proteins involved in transport may act as (3) ___ to move substances
against their concentration gradient.
[3 marks]
1
2
3
0 1 . 2 Explain why facilitated diffusion does not require
energy but active transport does.
[2 marks]
AQA AL Biology Question Paper 3 2025 Predicted
, 3
0 1 . 3 Define osmosis and explain how it differs from simple diffusion.
[3 marks]
0 1 . 4 Describe the role of the cell membrane in regulating the movement of substances
[3 marks]
11
AQA AL Biology Question Paper 3 2025 Predicted
