Edexcel IAL biology WBI14 mark scheme 2025, biology unit 4 answers Edexcel, A level biology revision paper

Jan 2025 Pearson Edexcel BiologyJan
IAL 2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
Jan
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2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
IALMS.pdf
Biology Unit 4 WBI14- 01 Biology MS.pdf




Mark Scheme (Results)

January 2025

Pearson Edexcel International Advanced Level In
Biology (WBI14)
Paper 01 Energy, Environment, Microbiology, and
Immunity




Jan 2025 Pearson Edexcel BiologyJan
IAL 2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
Jan
IALMS.pdf
2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
IALMS.pdf
Biology Unit 4 WBI14- 01 Biology MS.pdf

,Jan 2025 Pearson Edexcel BiologyJan
IAL 2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
Jan
IALMS.pdf)##(&)#%)(*#%)#^*(&)#^*)(*(#U%#(UY(#)JM()(*#I)(#*IU)(#*%()$**#%)(*U)($)U)(
2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
IALMS.pdf
Biology Unit 4 WBI14- 01 Biology MS.pdf




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January 2025
Question paper log number P78445A
Publications Code WBI14_01_2501_MS
All the material in this publication is copyright
© Pearson Education Ltd 2025




Jan 2025 Pearson Edexcel BiologyJan
IAL 2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
Jan
IALMS.pdf
2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
IALMS.pdf
Biology Unit 4 WBI14- 01 Biology MS.pdf

,Jan 2025 Pearson Edexcel BiologyJan
IAL 2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
Jan
IALMS.pdf)##(&)#%)(*#%)#^*(&)#^*)(*(#U%#(UY(#)JM()(*#I)(#*IU)(#*%()$**#%)(*U)($)U)(
2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
IALMS.pdf
Biology Unit 4 WBI14- 01 Biology MS.pdf




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.




Jan 2025 Pearson Edexcel BiologyJan
IAL 2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
Jan
IALMS.pdf
2025
Biology
Pearson
Unit 4 Edexcel
WBI14- 01
Biology
Biology
IALMS.pdf
Biology Unit 4 WBI14- 01 Biology MS.pdf

, Jan 2025 Pearson Edexcel Biology IAL Biology Unit 4 WBI14- 01 Biology
Jan MS.pdf)##(&)#%)(*#%)#^*(&)#^*)(*(#U%#(UY(#)JM()(*#I)(#*IU)(#*%()$**#%)(*U)($)U)({P$
2025 Pearson Edexcel Biology IAL Biology Unit 4 WBI14- 01 Biology
Jan MS.pdf
2025 Pearson Edexcel Biology IAL Biology Unit 4 WBI14- 01 Biology MS.pdf




Question Answer Mark
number
1(a)
The only correct answer is C



A is incorrect because Box J is GPP, Box K is R and Box L is NPP
B is incorrect because Box J is GPP, Box K is R and Box L is NPP
D is incorrect because Box J is GPP, Box K is R and Box L is NPP
(1)



Question Answer Mark
number
1(b)
The only correct answer is D


A is incorrect because the units are energy per area per time = kJ m-2 yr-1
B is incorrect because the units are energy per area per time = kJ m-2 yr-1
C is incorrect because the units are energy per area per time = kJ m-2 yr-1
(1)




Jan 2025 Pearson Edexcel Biology IAL Biology Unit 4 WBI14- 01 Biology
Jan MS.pdf
2025 Pearson Edexcel Biology IAL Biology Unit 4 WBI14- 01 Biology
Jan MS.pdf
2025 Pearson Edexcel Biology IAL Biology Unit 4 WBI14- 01 Biology MS.pdf