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A2 Biology OCR June 2015 Revision Thread

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For which question?
[UOTE]So glad i put stem cells and bone marrow literally seconds before the exam ended.
Original post by jas9799
yes i put endocrine too.

did you also put the medulla region for another gap?

i put the cortex, isn't adrenaline produced in the medulla and that's it?
Well that exam has just ruined my chance of getting into uni. To think this was the unit I found easiest as well. :frown:
Original post by Hayley Williams
yes!!


Phew!
Original post by jas9799
yes i put endocrine too.

did you also put the medulla region for another gap?


I put the cortex because it was a glucocorticoid. I'm not too sure though.
Original post by ellyphhant
i wrote exocrine


it was endocrine
Is exocrine wrong then?
For the question where it asked what causes shivering? what was the answer? adrenaline??
Also for the difference between plants in shade and sun I said fewer stomata is that possible?
Original post by Hayley Williams
i put the cortex, isn't adrenaline produced in the medulla and that's it?


I put that as well!
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Gus22
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Original post by goonieskellie
huh, i wrote they would have i wider range of accessory pigments to absorb as much light as possible? :s-smilie:


I think I said that as well
Original post by Harry1996
What did people put for the question about plants' adaptions to sunlight? I put thick waxy cuticle :/


lol ur funny
i put larger leaf to increase surface area
I put leaves in the light would have waxy cuticle . Is this wrong


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Original post by Hayley Williams
i put the cortex, isn't adrenaline produced in the medulla and that's it?


Yeah adrenaline is produced in the medulla, glucocoritcoids and mineralcorticoids are produced in the cortext, I remembered it from 'cort' in the names.
Ffs i put endocrine and then changed it to exocrine
Do you think the grade boundaries will actually be as high as 45 for an A?!
i put adrenal cortex
will i get the mark?
Whatd ppl put for why is insulin still secreted


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Original post by Hayley Williams
i put the cortex, isn't adrenaline produced in the medulla and that's it?


damn! i couldnt remember which way round it was arghh
Well the lowest have been June 2011, which was 40 for an A, and personally i think that was much harder!
for the light intensity question, wouldnt you talk about how light intensity is no longer the limiting factor and so c02 or something else must be - then explain this in terms of the calvin cycle?
Original post by jas9799
yes i put endocrine too.

did you also put the medulla region for another gap?


no its cortex

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