gy
iolo
2022 xcel B
Ede
Mark Scheme (Results)
Summer 2022
Pearson Edexcel GCE
In AS Biology (8BI0_01)
Paper 1: Core Cellular Biology and
Microbiology
, gy
iolo
2022 xcel B
Edexcel and BTEC Qualifications
Ede
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a
wide range of qualifications including academic, vocational, occupational and specific programmes for
employers. For further information visit our qualifications websites at www.edexcel.com or
www.btec.co.uk. Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help everyone progress in
their lives through education. We believe in every kind of learning, for all kinds 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: www.pearson.com/uk
Summer 2022
Question Paper Log Number P70809
Publications Code 8BI0_01_2206_MS
All the material in this publication is copyright
© Pearson Education Ltd 2022
, gy
iolo
2022 xcel B
Answer Additional Guidance Mark
Ede
Question
Number
1(a) Example of calculation:
• diameter measured and mean value calculated (1) 44 (mm) / 4.4 (cm) and 0.019 (mm)
• 2 316 (1) ecf if either 44 (mm) or 0.019 used and answer
rounded up to whole number correctly
e.g. (45 and 0.019 =) 2 368 (2)
Correct answer with no working gets 2 marks
Question Answer Additional Guidance Mark
Number
1(b) A description that makes reference to three of the following:
• use an (eye piece) graticule to measure the diameter (1) ACCEPT length / size
• take several measurements and calculate the mean (for each cell) (1)
• calibrate the (eye piece) graticule (1) ACCEPT a description of how this is done
• using a stage micrometer (1) (3)
iolo
2022 xcel B
Ede
Mark Scheme (Results)
Summer 2022
Pearson Edexcel GCE
In AS Biology (8BI0_01)
Paper 1: Core Cellular Biology and
Microbiology
, gy
iolo
2022 xcel B
Edexcel and BTEC Qualifications
Ede
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. We provide a
wide range of qualifications including academic, vocational, occupational and specific programmes for
employers. For further information visit our qualifications websites at www.edexcel.com or
www.btec.co.uk. Alternatively, you can get in touch with us using the details on our contact us page at
www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. Our aim is to help everyone progress in
their lives through education. We believe in every kind of learning, for all kinds 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: www.pearson.com/uk
Summer 2022
Question Paper Log Number P70809
Publications Code 8BI0_01_2206_MS
All the material in this publication is copyright
© Pearson Education Ltd 2022
, gy
iolo
2022 xcel B
Answer Additional Guidance Mark
Ede
Question
Number
1(a) Example of calculation:
• diameter measured and mean value calculated (1) 44 (mm) / 4.4 (cm) and 0.019 (mm)
• 2 316 (1) ecf if either 44 (mm) or 0.019 used and answer
rounded up to whole number correctly
e.g. (45 and 0.019 =) 2 368 (2)
Correct answer with no working gets 2 marks
Question Answer Additional Guidance Mark
Number
1(b) A description that makes reference to three of the following:
• use an (eye piece) graticule to measure the diameter (1) ACCEPT length / size
• take several measurements and calculate the mean (for each cell) (1)
• calibrate the (eye piece) graticule (1) ACCEPT a description of how this is done
• using a stage micrometer (1) (3)
