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AQA A LEVEL BIOLOGY PAPER 1,2,3 QUESTION PAPERS AND MARK SCHEMES 2021.CORRECTLY ANSWERED.
AQA A LEVEL BIOLOGY PAPER 1,2,3 QUESTION PAPERS AND MARK SCHEMES 2021.CORRECTLY ANSWERED.
[Show more]AQA A LEVEL BIOLOGY PAPER 1,2,3 QUESTION PAPERS AND MARK SCHEMES 2021.CORRECTLY ANSWERED.
[Show more]In one species of squirrel, Sciurus carolinensis, fur colour is controlled by one gene, with two codominant alleles. CG represents the allele for grey fur colour, and CB represents the allele for black fur colour. 
Table 1 shows the three possible phenotypes. 
In a population of 34 S. carolinensis, ...
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Add to cartIn one species of squirrel, Sciurus carolinensis, fur colour is controlled by one gene, with two codominant alleles. CG represents the allele for grey fur colour, and CB represents the allele for black fur colour. 
Table 1 shows the three possible phenotypes. 
In a population of 34 S. carolinensis, ...
AQA A-level BIOLOGY 74023 Paper 3 Mark scheme June 2021 Version 1.0 Final 
100% well graded answers
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Add to cartAQA A-level BIOLOGY 74023 Paper 3 Mark scheme June 2021 Version 1.0 Final 
100% well graded answers
AQA A Level Biology Paper 1 7402-1 Question Paper June 2021 Version 1.0 Final 
Describe the induced-fit model of enzyme action and how an enzyme acts as a catalyst 
Scientists investigated the action of the enzyme ATP synthase. They made reaction mixtures each containing: 
•ATP synthase 
•buffer...
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Add to cartAQA A Level Biology Paper 1 7402-1 Question Paper June 2021 Version 1.0 Final 
Describe the induced-fit model of enzyme action and how an enzyme acts as a catalyst 
Scientists investigated the action of the enzyme ATP synthase. They made reaction mixtures each containing: 
•ATP synthase 
•buffer...
AQA A LEVEL BIOLOGY PAPER 1-7402_1-Final-MARK SCHEME-Jun21-v1.0 
100% CORRECTLY ANSWERED QUESTIONS
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Add to cartAQA A LEVEL BIOLOGY PAPER 1-7402_1-Final-MARK SCHEME-Jun21-v1.0 
100% CORRECTLY ANSWERED QUESTIONS
AQA A LEVEL BIOLOGY PAPER 2-7402-2-Final-MARK SCHEME-Jun21-v1.0
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Add to cartAQA A LEVEL BIOLOGY PAPER 2-7402-2-Final-MARK SCHEME-Jun21-v1.0
AQA A LEVEL BIOLOGY PAPER 2 7402-2-QUESTION PAPER15Oct21-AM (1) 
Describe the process of glycolysis 
Malonate inhibits a reaction in the Krebs cycle. 
Explain why malonate would decrease the uptake of oxygen in a respiring cell. 
[2 marks] 
6 
Explain how a resting potential is maintained across the...
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Add to cartAQA A LEVEL BIOLOGY PAPER 2 7402-2-QUESTION PAPER15Oct21-AM (1) 
Describe the process of glycolysis 
Malonate inhibits a reaction in the Krebs cycle. 
Explain why malonate would decrease the uptake of oxygen in a respiring cell. 
[2 marks] 
6 
Explain how a resting potential is maintained across the...
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