Edexcel Biology 2BF 2025 Predicted Question Paper
Mark Scheme
(Results)
2025 Predicted Paper
Pearson Edexcel GCSE
Paper 4: Biology 2 (1SC0/2BF) –
Foundation Tier
, Edexcel Biology 2BF 2025 Predicted Question Paper
General Marking Guidance
• All candidates must receive the same treatment. Examiners must mark the first
candidate in exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates must be rewarded for
what they have shown they can do rather than penalised for omissions.
• Examiners should mark according to the mark scheme not according to their
perception of where the grade boundaries may lie.
• There is no ceiling on achievement. All marks on the mark scheme should be used
appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners
should always award full marks if deserved, i.e. if the answer matches the
mark scheme. Examiners should also be prepared to award zero marks if the
candidate’s response is not worthy of credit according to the mark scheme.
• Where some judgement is required, mark schemes will provide the principles by
which marks will be awarded and exemplification may be limited.
• When examiners are in doubt regarding the application of the mark scheme
to a 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.
, Edexcel Biology 2BF 2025 Predicted Question Paper
Find the comprehensive elaborations for the question set provided
beneath the mark scheme for Question 01.
Question 1
Question Answers Extra information Mark
Answer: B Pulmonary vein Pulmonary Vein: The only vein 1
01.a
that carries oxygenated blood
from the lungs to the left atrium
of the heart, unlike other veins
that carry deoxygenated blood.
Question Answers Extra information Mark
01.b Answers: Arteries: Transport blood 2
1. Arteries away from the heart under
2. Capillaries, nutrients high pressure.
Capillaries: Thin-walled
vessels that enable the
exchange of nutrients,
oxygen, and waste between
blood and tissues.
Question Answers Extra information Mark
Valves in Veins:
01.c Valves in veins prevent Prevent the backflow of 2
the backflow of blood, blood by closing when
ensuring one-way flow blood attempts to flow
toward the heart despite backward due to gravity
low pressure or low pressure.
3
, Edexcel Biology 2BF 2025 Predicted Question Paper
Question Answers Extra information Mark
Thicker Left Ventricle
01.d The left ventricle has Walls: Necessary to 2
thicker walls than the right pump oxygenated blood
ventricle because it needs through the systemic
to pump blood to the entire circulation, which has
body, requiring more force higher resistance
to overcome higher compared to the
resistance in systemic pulmonary circulation.
circulation
Total Question 1 7
4
Mark Scheme
(Results)
2025 Predicted Paper
Pearson Edexcel GCSE
Paper 4: Biology 2 (1SC0/2BF) –
Foundation Tier
, Edexcel Biology 2BF 2025 Predicted Question Paper
General Marking Guidance
• All candidates must receive the same treatment. Examiners must mark the first
candidate in exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates must be rewarded for
what they have shown they can do rather than penalised for omissions.
• Examiners should mark according to the mark scheme not according to their
perception of where the grade boundaries may lie.
• There is no ceiling on achievement. All marks on the mark scheme should be used
appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners
should always award full marks if deserved, i.e. if the answer matches the
mark scheme. Examiners should also be prepared to award zero marks if the
candidate’s response is not worthy of credit according to the mark scheme.
• Where some judgement is required, mark schemes will provide the principles by
which marks will be awarded and exemplification may be limited.
• When examiners are in doubt regarding the application of the mark scheme
to a 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.
, Edexcel Biology 2BF 2025 Predicted Question Paper
Find the comprehensive elaborations for the question set provided
beneath the mark scheme for Question 01.
Question 1
Question Answers Extra information Mark
Answer: B Pulmonary vein Pulmonary Vein: The only vein 1
01.a
that carries oxygenated blood
from the lungs to the left atrium
of the heart, unlike other veins
that carry deoxygenated blood.
Question Answers Extra information Mark
01.b Answers: Arteries: Transport blood 2
1. Arteries away from the heart under
2. Capillaries, nutrients high pressure.
Capillaries: Thin-walled
vessels that enable the
exchange of nutrients,
oxygen, and waste between
blood and tissues.
Question Answers Extra information Mark
Valves in Veins:
01.c Valves in veins prevent Prevent the backflow of 2
the backflow of blood, blood by closing when
ensuring one-way flow blood attempts to flow
toward the heart despite backward due to gravity
low pressure or low pressure.
3
, Edexcel Biology 2BF 2025 Predicted Question Paper
Question Answers Extra information Mark
Thicker Left Ventricle
01.d The left ventricle has Walls: Necessary to 2
thicker walls than the right pump oxygenated blood
ventricle because it needs through the systemic
to pump blood to the entire circulation, which has
body, requiring more force higher resistance
to overcome higher compared to the
resistance in systemic pulmonary circulation.
circulation
Total Question 1 7
4
