Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Edexcel Level 3 GCE
Friday 12 June 2026
Mark Scheme (Results)
Morning (Time: 2 hours) Paper
reference 9BN0/02
Biology A (Salters Nuffield)
Advanced
PAPER 2: Energy, Exercise and Coordination Summer 2026
You must have: Total Marks
Scientific calculator, pencil, ruler
Instructions
•• Use black ink or ball-point pen. Edexcel Advanced Level in Biology A
Fill in the boxes at the top of this page with your name, uffield)
centre number and candidate number.
•• Answer all questions.
Show your working in any calculation questions and include units in your answer
9BN0/02
where appropriate.
• Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 100.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
•• You may use a scientific calculator.
In question(s) marked with an asterisk (*), marks will be awarded for your ability
to structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end. Turn over
P79059A
P:1/1/1/1/1/
Education Ltd. *P79059A0136*
, Edexcel and BTEC Qualifications
Answer ALL questions. Write your answers in the spaces provided.
Edexcel and BTEC qualifications are awarded by the UK’s largest
Some questions must be answered with a cross in a box . If you change your mind about an
awarding body. We provide a wide range of qualifications including acade
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
vocational, occupational and specific programmes for employers. For fur
1 Lipids are an important group of molecules that include triglycerides. information visit our qualifications websites at or
.
Low-density lipoproteins (LDLs) contain lipids.
Alternatively, you can get in touch with us using the details on our contact
(a) (i) Which of the following is the number of hydrocarbon chains in a page at
saturated triglyceride?
(1)
A 0
B 1
C 2
helping people progress, everywhere
D 3
aspires to be the world’s leading learning company. Our aim is to help everyone
(ii) Compare and contrast the structure of a saturated triglyceride with the progress in their lives through education. We believe in every kind of learning, for all kinds
structure of an unsaturated triglyceride.
(2) of people, wherever they are in the world. We’ve been involved in education for over 150
years, and by working across 70 countries, in 100 languages, we have built an international
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . reputation for our commitment to high standards and raising achievement through
innovation in education. Find out more about how we can help you and your students at:
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summer 2026
Question Paper Log Number P79059A
Publication Code 9BN0_02_2606
rial in this publication is
2
*P79059A0236*
, (b) The effects of age of people and concentration of LDLs in the blood on the
development of cardiovascular disease (CVD) were studied. General Marking Guidance
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
The number of cases of CVD per thousand people in different age groups, in the • All candidates must receive the same treatment. Examiners must mark the first
UK, was recorded. candidate in exactly the same way as they mark the last.
The table shows the results of this study. • Mark schemes should be applied positively. Candidates must be rewarded for what
they have shown they can do rather than penalised for omissions.
Mean number of cases of CVD per thousand people • Examiners should mark according to the mark scheme not according to their
Concentration of
in each age group
LDL in the blood perception of where the grade boundaries may lie.
/ mmol dm–3 20 to 49 50 to 59 60 to 69 70 to 79 • There is no ceiling on achievement. All marks on the mark scheme should be used
< 2.0 0.5 2.8 5.1 6.6 appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners should
2.0 to 2.9 0.7 2.6 4.7 11.9
always award full marks if deserved, i.e. if the answer matches the mark scheme.
3.0 to 3.9 1.5 2.8 5.9 12.5 Examiners should also be prepared to award zero marks if the candidate’s response is
not worthy of credit according to the mark scheme.
4.0 to 4.9 3.0 4.1 6.1 14.1
• Where some judgement is required, mark schemes will provide the principles by which
marks will be awarded and exemplification may be limited.
(i) Comment on the relative importance of age and concentration of LDLs in the
• When examiners are in doubt regarding the application of the mark scheme to a
blood on the number of CVD cases.
(3) candidate’s response, the team leader must be consulted.
• Crossed out work should be marked UNLESS the candidate has replaced it with an
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
alternative response.
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
*P79059A0336* Turn over
, es
(ii) Calculate the number of CVD cases in the UK for people who are in the
50–59 age group and who have a concentration of LDL in the blood of less Question Answer Mark
than 3 mmol dm–3. Number
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
1 (a)(i) The only correct answer is D
Assume that there are 70 million people in the UK.
(2)
A is incorrect as there are 3 hydrocarbon chains in a triglyceride
B is incorrect as there are 3 hydrocarbon chains in a triglyceride
C is incorrect as there are 3 hydrocarbon chains in a triglyceride (1)
Comp
Question Answer Additional guidance Mark
ad
number
1 (a)(ii) An answer that makes reference to the following: ALLOW as a diagram
Answer ......................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Similarity
(Total for Question 1 = 8 marks)
• (both have a) glycerol / three fatty acids / three ALLOW both contain ester bonds
hydrocarbon chains (1)
Difference
• (only the unsaturated has) a { C=C (double bond)/ ALLOW converse – saturated triglyceride does
kink in a fatty acid (chain) } (1) not have double carbon to carbon bonds (2)
ALLOW saturated has higher H:C ratio / lower Exp
gr
C:H ratio /double bonds in the HC chain
t
es
4
*P79059A0436*
Candidate surname Other names
Centre Number Candidate Number
Edexcel Level 3 GCE
Friday 12 June 2026
Mark Scheme (Results)
Morning (Time: 2 hours) Paper
reference 9BN0/02
Biology A (Salters Nuffield)
Advanced
PAPER 2: Energy, Exercise and Coordination Summer 2026
You must have: Total Marks
Scientific calculator, pencil, ruler
Instructions
•• Use black ink or ball-point pen. Edexcel Advanced Level in Biology A
Fill in the boxes at the top of this page with your name, uffield)
centre number and candidate number.
•• Answer all questions.
Show your working in any calculation questions and include units in your answer
9BN0/02
where appropriate.
• Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 100.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
•• You may use a scientific calculator.
In question(s) marked with an asterisk (*), marks will be awarded for your ability
to structure your answer logically, showing how the points that you make are
related or follow on from each other where appropriate.
Advice
•• Read each question carefully before you start to answer it.
Try to answer every question.
• Check your answers if you have time at the end. Turn over
P79059A
P:1/1/1/1/1/
Education Ltd. *P79059A0136*
, Edexcel and BTEC Qualifications
Answer ALL questions. Write your answers in the spaces provided.
Edexcel and BTEC qualifications are awarded by the UK’s largest
Some questions must be answered with a cross in a box . If you change your mind about an
awarding body. We provide a wide range of qualifications including acade
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
vocational, occupational and specific programmes for employers. For fur
1 Lipids are an important group of molecules that include triglycerides. information visit our qualifications websites at or
.
Low-density lipoproteins (LDLs) contain lipids.
Alternatively, you can get in touch with us using the details on our contact
(a) (i) Which of the following is the number of hydrocarbon chains in a page at
saturated triglyceride?
(1)
A 0
B 1
C 2
helping people progress, everywhere
D 3
aspires to be the world’s leading learning company. Our aim is to help everyone
(ii) Compare and contrast the structure of a saturated triglyceride with the progress in their lives through education. We believe in every kind of learning, for all kinds
structure of an unsaturated triglyceride.
(2) of people, wherever they are in the world. We’ve been involved in education for over 150
years, and by working across 70 countries, in 100 languages, we have built an international
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . reputation for our commitment to high standards and raising achievement through
innovation in education. Find out more about how we can help you and your students at:
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summer 2026
Question Paper Log Number P79059A
Publication Code 9BN0_02_2606
rial in this publication is
2
*P79059A0236*
, (b) The effects of age of people and concentration of LDLs in the blood on the
development of cardiovascular disease (CVD) were studied. General Marking Guidance
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
The number of cases of CVD per thousand people in different age groups, in the • All candidates must receive the same treatment. Examiners must mark the first
UK, was recorded. candidate in exactly the same way as they mark the last.
The table shows the results of this study. • Mark schemes should be applied positively. Candidates must be rewarded for what
they have shown they can do rather than penalised for omissions.
Mean number of cases of CVD per thousand people • Examiners should mark according to the mark scheme not according to their
Concentration of
in each age group
LDL in the blood perception of where the grade boundaries may lie.
/ mmol dm–3 20 to 49 50 to 59 60 to 69 70 to 79 • There is no ceiling on achievement. All marks on the mark scheme should be used
< 2.0 0.5 2.8 5.1 6.6 appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners should
2.0 to 2.9 0.7 2.6 4.7 11.9
always award full marks if deserved, i.e. if the answer matches the mark scheme.
3.0 to 3.9 1.5 2.8 5.9 12.5 Examiners should also be prepared to award zero marks if the candidate’s response is
not worthy of credit according to the mark scheme.
4.0 to 4.9 3.0 4.1 6.1 14.1
• Where some judgement is required, mark schemes will provide the principles by which
marks will be awarded and exemplification may be limited.
(i) Comment on the relative importance of age and concentration of LDLs in the
• When examiners are in doubt regarding the application of the mark scheme to a
blood on the number of CVD cases.
(3) candidate’s response, the team leader must be consulted.
• Crossed out work should be marked UNLESS the candidate has replaced it with an
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
alternative response.
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
*P79059A0336* Turn over
, es
(ii) Calculate the number of CVD cases in the UK for people who are in the
50–59 age group and who have a concentration of LDL in the blood of less Question Answer Mark
than 3 mmol dm–3. Number
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA DO NOT WRITE IN THIS AREA
1 (a)(i) The only correct answer is D
Assume that there are 70 million people in the UK.
(2)
A is incorrect as there are 3 hydrocarbon chains in a triglyceride
B is incorrect as there are 3 hydrocarbon chains in a triglyceride
C is incorrect as there are 3 hydrocarbon chains in a triglyceride (1)
Comp
Question Answer Additional guidance Mark
ad
number
1 (a)(ii) An answer that makes reference to the following: ALLOW as a diagram
Answer ......................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Similarity
(Total for Question 1 = 8 marks)
• (both have a) glycerol / three fatty acids / three ALLOW both contain ester bonds
hydrocarbon chains (1)
Difference
• (only the unsaturated has) a { C=C (double bond)/ ALLOW converse – saturated triglyceride does
kink in a fatty acid (chain) } (1) not have double carbon to carbon bonds (2)
ALLOW saturated has higher H:C ratio / lower Exp
gr
C:H ratio /double bonds in the HC chain
t
es
4
*P79059A0436*
