AQA A LEVEL BIOLOGY PAPER 2 QUESTION
PAPER AND WELL DEFINED MARKING SCHEME
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signatu re
I declare this is my own work.
A-level
BIOLOGY
Paper 2
Time allowed: 2 hours
Materials
For Examiner’s Use
Question Mark
1
,For this paper you must have:
a ruler with millimetre measurements
a scientific calculator.
Instructions
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page.
Answer all questions.
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 91.
7402/2
IB/H/Jun21/E14
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 . 1 Describe the process of glycolysis.
[4 marks]
6
IB/H/Jun21/7402/2
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 . 2 Malonate inhibits a reaction in the Krebs cycle.
Explain why malonate would decrease the uptake of oxygen in a respiring cell.
[2 marks]
IB/H/Jun21/7402/2
PAPER AND WELL DEFINED MARKING SCHEME
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signatu re
I declare this is my own work.
A-level
BIOLOGY
Paper 2
Time allowed: 2 hours
Materials
For Examiner’s Use
Question Mark
1
,For this paper you must have:
a ruler with millimetre measurements
a scientific calculator.
Instructions
Use black ink or black ball-point pen.
Fill in the boxes at the top of this page.
Answer all questions.
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 91.
7402/2
IB/H/Jun21/E14
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 . 1 Describe the process of glycolysis.
[4 marks]
6
IB/H/Jun21/7402/2
, 2
Do not write
outside the
Answer all questions in the spaces provided. box
0 1 . 2 Malonate inhibits a reaction in the Krebs cycle.
Explain why malonate would decrease the uptake of oxygen in a respiring cell.
[2 marks]
IB/H/Jun21/7402/2
