I reckon i could have got 65 maybe, i think the questions were:
Multipule choice, trna, mrna
Carbohydrates
Heart, giraffe thing
enzyme, pH experiment
blood clot question, ATP
caffiene question
question about drug, antihypertensives, two groups
gene therapy one
I found it quite difficult, so I think about 55 for an A, bearing in mind that in june 09 is was 49 for an A