PP1
AQA
Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
I declare this is my own
Monday 15 May 2023 Morning
AS
LEVEL
BIOLOGY
Paper 1
MAY 2023
Time allowed: 1 hour 30 minutes
Materials For Examiner’s Use
For this paper you must have:
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. 4
Answer all questions.
5
You must answer the questions in the spaces provided. Do
not write outside the box around each page or on blank 6
pages. 7
If you need extra space for your answer(s), use the lined pages at the end of
8
this book. Write the question number against your answer(s).
Show all your working. 9
Do all rough work in this book. Cross through any work you do TOTAL
not want to be marked.
Information
The marks for the questions are shown in brackets.
,PP1
The maximum mark for this paper is 75.
, Answer all questions in the spaces box
provided.
0 1 .1 Describe the primary structure of all proteins.
[2 marks]
0 1
.2 This question is about the genetic code.
Define universal, non-overlapping and degenerate.
[3 marks]
Universal
Non-overlapping
Degenerate
5
, Figure
0 21 shows a transmission electron microscope (TEM) image of a Streptococcus box
bacterium.
Figure 1
0 2 .1 Describe how the appearance of the area containing DNA in a TEM
image of a eukaryotic cell would differ from that shown in Figure 1.
[2 marks]
0 2 .2 Describe one difference between the structure of DNA in a prokaryotic
cell and in a eukaryotic cell.
[1 mark]
Question 2 continues on the next page
Turn over ►
AQA
Please write clearly in block capitals.
Centre Candidate
number number
Surname
Forename(s)
Candidate re
signatu
I declare this is my own
Monday 15 May 2023 Morning
AS
LEVEL
BIOLOGY
Paper 1
MAY 2023
Time allowed: 1 hour 30 minutes
Materials For Examiner’s Use
For this paper you must have:
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. 4
Answer all questions.
5
You must answer the questions in the spaces provided. Do
not write outside the box around each page or on blank 6
pages. 7
If you need extra space for your answer(s), use the lined pages at the end of
8
this book. Write the question number against your answer(s).
Show all your working. 9
Do all rough work in this book. Cross through any work you do TOTAL
not want to be marked.
Information
The marks for the questions are shown in brackets.
,PP1
The maximum mark for this paper is 75.
, Answer all questions in the spaces box
provided.
0 1 .1 Describe the primary structure of all proteins.
[2 marks]
0 1
.2 This question is about the genetic code.
Define universal, non-overlapping and degenerate.
[3 marks]
Universal
Non-overlapping
Degenerate
5
, Figure
0 21 shows a transmission electron microscope (TEM) image of a Streptococcus box
bacterium.
Figure 1
0 2 .1 Describe how the appearance of the area containing DNA in a TEM
image of a eukaryotic cell would differ from that shown in Figure 1.
[2 marks]
0 2 .2 Describe one difference between the structure of DNA in a prokaryotic
cell and in a eukaryotic cell.
[1 mark]
Question 2 continues on the next page
Turn over ►
