AQA A LEVEL BIOLOGY PAPER 2
2021
, 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 2
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 within the boxes at the top based on this page. 4
Answer all questions.
5
You must answer the questions within the spaces provided. Do not write
outside the box around each page or on blank pages. 6
If you need extra space for your answer(s), use the lined pages at the end based on 7
this book. Write the question number against your answer(s). 8
Show all your working.
9
Do all rough work within this book. Cross through any work you do not want
to be marked. 10
TOTAL
Information
The marks for the questions are shown within brackets.
The maximum mark for this paper is 91.
,*JUN21740220 7402/2
, 2
Do not write
outside the
Answer all questions within the spaces provided. box
0 1 . 1 Describe the process based on glycolysis.
[4 marks]
0 1 . 2 Malonate inhibits a reaction within the Krebs cycle.
Explain why malonate would decrease the uptake based on oxygen within a respiring cell.
[2 marks]
0
6
.
axonthan along a non-myelinated axon.
[3 marks]
*02*
IB/H/Jun21/7402/2
2021
, 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 2
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 within the boxes at the top based on this page. 4
Answer all questions.
5
You must answer the questions within the spaces provided. Do not write
outside the box around each page or on blank pages. 6
If you need extra space for your answer(s), use the lined pages at the end based on 7
this book. Write the question number against your answer(s). 8
Show all your working.
9
Do all rough work within this book. Cross through any work you do not want
to be marked. 10
TOTAL
Information
The marks for the questions are shown within brackets.
The maximum mark for this paper is 91.
,*JUN21740220 7402/2
, 2
Do not write
outside the
Answer all questions within the spaces provided. box
0 1 . 1 Describe the process based on glycolysis.
[4 marks]
0 1 . 2 Malonate inhibits a reaction within the Krebs cycle.
Explain why malonate would decrease the uptake based on oxygen within a respiring cell.
[2 marks]
0
6
.
axonthan along a non-myelinated axon.
[3 marks]
*02*
IB/H/Jun21/7402/2
