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AQA A LEVEL BIOLOGY Paper 1, 2 & 3 MS 2021.
AQA A LEVEL BIOLOGY Paper 1, 2 & 3 MS 2021.
[Mostrar más]AQA A LEVEL BIOLOGY Paper 1, 2 & 3 MS 2021.
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AQA A LEVEL BIOLOGY PAPER 1 
2021. Describe the induced-fit model based on enzyme action and how an enzyme acts as a 
catalyst. 
[3 marks] 
. 2 Scientists investigated the action based on the enzyme ATP synthase. They made reaction 
mixtures each containing: 
• ATP synthase 
• buffer (to contro...
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Añadir al carritoAQA A LEVEL BIOLOGY PAPER 1 
2021. Describe the induced-fit model based on enzyme action and how an enzyme acts as a 
catalyst. 
[3 marks] 
. 2 Scientists investigated the action based on the enzyme ATP synthase. They made reaction 
mixtures each containing: 
• ATP synthase 
• buffer (to contro...
AQA A LEVEL BIOLOGY Paper 2 MS 
2021. MARK SCHEME − A-LEVEL BIOLOGY − 7402/2 − JUNE 2021 
Question Marking Guidance Mark Comments 
1. Phosphorylation based on glucose using ATP; 
2. Oxidation based on triose phosphate to pyruvate; 
Accept all mark points 
within diagrams. 
3. Net gain based o...
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Añadir al carritoAQA A LEVEL BIOLOGY Paper 2 MS 
2021. MARK SCHEME − A-LEVEL BIOLOGY − 7402/2 − JUNE 2021 
Question Marking Guidance Mark Comments 
1. Phosphorylation based on glucose using ATP; 
2. Oxidation based on triose phosphate to pyruvate; 
Accept all mark points 
within diagrams. 
3. Net gain based o...
AQA A LEVEL BIOLOGY Paper 3 MS 
2021. MARK SCHEME – A-LEVEL BIOLOGY – 7402/3 – JUNE 2021 
Question Marking Guidance Mark Comments 
1. Answer based on 12/13 = 2 marks;; 
2. 0.36(48)/0.365/0.37 = 1 mark 
OR 
01.1 36(.48)/36.5/37% = 1 mark 
OR 
2 
For 1 mark accept q 
2 
= 6%/5.9%/5.88% 
q 
2 
= ...
Vista previa 3 fuera de 23 páginas
Añadir al carritoAQA A LEVEL BIOLOGY Paper 3 MS 
2021. MARK SCHEME – A-LEVEL BIOLOGY – 7402/3 – JUNE 2021 
Question Marking Guidance Mark Comments 
1. Answer based on 12/13 = 2 marks;; 
2. 0.36(48)/0.365/0.37 = 1 mark 
OR 
01.1 36(.48)/36.5/37% = 1 mark 
OR 
2 
For 1 mark accept q 
2 
= 6%/5.9%/5.88% 
q 
2 
= ...
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