Breadth in biology - Study guides, Class notes & Summaries
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OCR GCSE (9–1) Biology B (Twenty First Century Science) J257/03 Breadth in biology (Higher Tier) QUESTION PAPER AND MARK SCHEME (MERGED)
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OCR 
GCSE (9–1) Biology B 
(Twenty First Century 
Science) 
J257/03 Breadth in biology 
(Higher Tier) 
QUESTION PAPER AND MARK SCHEME (MERGED)
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OCR MERGED QUESTION PAPER AND MARK SCHEME AS Level Biology AH020/01Breadth in biology FOR MAY 2024
- Exam (elaborations) • 49 pages • 2024
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OCR MERGED QUESTION PAPER AND MARK SCHEME AS Level Biology AH020/01Breadth in biology FOR MAY 2024
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OCR GCSE (9–1) Biology B (Twenty First Century Science) J257/01 Breadth in biology (Foundation Tier) QUESTION PAPER AND MARK SCHEME (MERGED)
- Exam (elaborations) • 74 pages • 2024
- Available in package deal
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OCR 
GCSE (9–1) Biology B 
(Twenty First Century 
Science) 
J257/01 Breadth in biology (Foundation Tier) 
QUESTION PAPER AND MARK SCHEME (MERGED)
-
Biology A H020/01: Breadth in biology AS Level Question Paper & Mark Scheme (Merged)
- Exam (elaborations) • 43 pages • 2024
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Biology A 
H020/01: Breadth in biology 
AS Level 
Question Paper & Mark Scheme (Merged)
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OCR AS LEVEL BIOLOGY A PAPER 1 H020/01 JUNE 2022 MARK SCHEME BREADTH IN BIOLOGY
- Exam (elaborations) • 25 pages • 2023
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OCR AS LEVEL BIOLOGY A PAPER 1 H020/01 JUNE 2022 MARK SCHEME BREADTH IN BIOLOGY. change in primary structure changes, tertiary structure / 
 3D shape 
(tertiary structure / 3D shape) no longer complementary 
 (to shape of enzyme) 
less likely to be broken down by enzymes / enzymesubstrate complexes less likely to form 
change in solubility 
Max 1 
ALLOW change in complementary shape 
IGNORE takes longer to be broken 
ALLOW can’t be broken down easily / harder to break 
down 
DO...
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OCR Biology A (AS) H020_01 Breadth in biology question paper June 2024
- Exam (elaborations) • 27 pages • 2024
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OCR Biology A (AS) H020_01 Breadth in biology question paper June 2024
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OCR AS Level Biology A H020/01 JUNE 2023 MARK SCHEME: Breadth in biology
- Exam (elaborations) • 25 pages • 2023
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This is the final mark scheme
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OCR Biology A (AS) H020_01 Breadth in biology June 2024
- Exam (elaborations) • 20 pages • 2024
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OCR Biology A (AS) H020_01 Breadth in biology June 2024
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OCR AS Level Biology A H020/01 Sample Question Paper 1 June 2022- Breadth in biology.
- Exam (elaborations) • 37 pages • 2023
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OCR AS Level Biology A H020/01 Sample Question Paper 1 June 2022- Breadth in biology. 
• Use black ink. You may use an HB pencil for graphs and diagrams. 
• Complete the boxes above with your name, centre number and candidate number. 
• Answer all the questions. 
• Where appropriate, your answers should be supported with working. Marks may 
be given for a correct method even if the answer is incorrect. 
2 
Section A 
You should spend a maximum of 25 minutes on this section. 
Answer all t...
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OCR AS LEVEL BIOLOGY A H020/01 JUNE 2022 ACTUAL QUESTION PAPER - Breadth in Biology.
- Exam (elaborations) • 25 pages • 2023
- Available in package deal
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OCR AS LEVEL BIOLOGY A H020/01 JUNE 2022 ACTUAL QUESTION PAPER - Breadth in Biology. 
SECTION A 
You should spend a maximum of 25 minutes on this section. 
Write your answer for each question in the box provided. 
Answer all the questions. 
1 The graph below shows the results of an osmosis experiment investigating the effect of changing 
the concentration of sodium chloride (NaCl) on mass of potatoes. 
10 
5 
Percentage 
change in 0 
mass 
–5 
–10 
Which concentration of NaCl causes equal mo...
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