AQA A Level Biology Paper 2 Unofficial Markscheme

This is the full correct question listed (90 marks) 1 missing

1- gap fill about plants (2)
LIR (6)

2- Cattle
Multiple choice (1)
Percentage (1)
Number difference (2)
Why straight from crops is more efficient (2)

3- nitrogen fixation
control for bacteria (2)
Evaluate (3)
More ATP available (2)

4- respirometer
Multiple choice (1)
Why it moved to left (3)
Measurements needed (2)
Different method (3)
Calculation (1)

5- three conclusions about distribution (3)
Speciation (5)
Mark release recapture (1)
precaution on marking animal (1)


6- type II diabetes
Calculation (2)
Evaluate (5)
Pancreatic cells die (2)


7-inheritence
Genotype (2)
Why it is dominant (2)
Probability (2)
Frequency (1)
statistical test (2)
Knowledge of HW - (2)

8-nerve impulse
Unidirectional (2)
Type of summation (2)
How enzyme would reduce muscle contraction (2)
How drug would stop the illness (3)


9- where is ADH released from (1)
Decrease in ADH (2)
What does ADH do (3)

10- TSG (3)
Screening (4)
Oestrogen (3)
Prostate cancer (2)
Drugs to reverse epigenetic changes (3)