AQA
Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
A-level
BIOLOGY
Paper 2
Friday 16 June 2023 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
a ruler with millimetre measurements Questio Mark
a scientific calculator. n
1
Instructions 2
Use black ink or black ball-point pen.
3
Fill in the boxes at the top of this page.
Answer all questions. 4
You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank 6
pages.
If you need extra space for your answer(s), use the lined pages at 7
the end of this book. Write the question number against your 8
answer(s). 9
Show all your working.
10
Do all rough work in this book. Cross through any work you do
not want to be marked. TOTAL
Information
The marks for the questions are shown in brackets.
The maximum mark for this paper is 91.
IB/M/ 7402/
,IB/M/ 7402/
, 2
Do not
write
Answer all questions in the spaces box
provided.
0 1 .1 A student used chromatography to separate the different photosynthetic
pigments in a chlorophyll solution. She had the following materials.
Chromatography
paper A ruler and
pencil Suitable
glassware
A solvent (solvent A)
2 cm3 of the chlorophyll solution
Describe how she could use these materials to separate the
photosynthetic pigments by chromatography.
[4 marks]
0 1 .2 Using solvent A, the student separated five pigments. She then repeated
her method using a different solvent, B. Using solvent B, she separated
six pigments.
Explain the difference between these results.
[2 marks]
*02
IB/M/
*
, 3
Do not
write
6
*02
IB/M/
*
Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
A-level
BIOLOGY
Paper 2
Friday 16 June 2023 Morning Time allowed: 2 hours
Materials
For this paper you must have: For Examiner’s Use
a ruler with millimetre measurements Questio Mark
a scientific calculator. n
1
Instructions 2
Use black ink or black ball-point pen.
3
Fill in the boxes at the top of this page.
Answer all questions. 4
You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank 6
pages.
If you need extra space for your answer(s), use the lined pages at 7
the end of this book. Write the question number against your 8
answer(s). 9
Show all your working.
10
Do all rough work in this book. Cross through any work you do
not want to be marked. TOTAL
Information
The marks for the questions are shown in brackets.
The maximum mark for this paper is 91.
IB/M/ 7402/
,IB/M/ 7402/
, 2
Do not
write
Answer all questions in the spaces box
provided.
0 1 .1 A student used chromatography to separate the different photosynthetic
pigments in a chlorophyll solution. She had the following materials.
Chromatography
paper A ruler and
pencil Suitable
glassware
A solvent (solvent A)
2 cm3 of the chlorophyll solution
Describe how she could use these materials to separate the
photosynthetic pigments by chromatography.
[4 marks]
0 1 .2 Using solvent A, the student separated five pigments. She then repeated
her method using a different solvent, B. Using solvent B, she separated
six pigments.
Explain the difference between these results.
[2 marks]
*02
IB/M/
*
, 3
Do not
write
6
*02
IB/M/
*
