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# A2 Biology OCR June 2015 Revision Thread watch

1. (Original post by Gro96)
They are the only right answers so for each you get wrong you lose a mark, looks like you got 3/4
oh omg thanks man u saved my life i thought i lost 3 marks

so im on 47/60
2. I doubt 46 like June 13, I did that paper yesterday it was ridiculously easy.. I got 55.. I'm thinking about 42-43 =A
(Original post by baffledchick)
So now we have all seen the unofficial mark scheme what is the grade boundary for an A looking like? Like last year 41? Or higher at 46(June 2013)?
3. (Original post by Gro96)
I doubt 46 like June 13, I did that paper yesterday it was ridiculously easy.. I got 55.. I'm thinking about 42-43 =A
YAY thank you! I didn't do that past paper so didn't know how easy it was compared to our paper.
4. Is sweating Negative Feedback?
and Shivering Positive feedback?

and for the dialysis ****, what was the answer for the 4 times a day thing?
I said the membrane isn't very big so filtration only occurs for small amounts of blood at a time or something so filtration of the blood has to occur more frequently
5. On the mitochondria question it said state the letter that represents each process btw
6. (Original post by Asif_m96)
On the mitochondria question it said state the letter that represents each process btw
thats what i was thinking so i just guessed
7. (Original post by mybutton jammed)
thats what i was thinking so i just guessed
I'm just saying because if those guys wrote 'cytoplasm' or 'matrix' instead of the letter then they lost marks
8. Questions were hard but the mark scheme may well be quite lenient, so my predictions:

B - 39
A - 43
A* - 47
9. (Original post by WeirdF)
Questions were hard but the mark scheme may well be quite lenient, so my predictions:

B - 39
A - 43
A* - 47
where's the mark scheme?
10. (Original post by frozo123)
where's the mark scheme?
Well it obviously hasn't been released yet, I'm just saying it may be quite lenient.

If you want the unofficial one it's here.
11. For the Insulin Question related to Diagram, I said for Number 1. GLUT 4 open (its a glucose transporter name). Will that get credit? As i had no clue those dark shapes were ATP -.-.
12. (Original post by Gro96)
They are the only right answers so for each you get wrong you lose a mark, looks like you got 3/4
for electron transport chain why cant u have more than 1 so unfair!!!
13. A MASSIVE THANK YOU to the people that put the mark scheme together Helped me to concentrate on the exams ahead!
14. (Original post by baffledchick)
A MASSIVE THANK YOU to the people that put the mark scheme together Helped me to concentrate on the exams ahead!
Don't worry I'll help lower the grade boundaries for F215 lol
15. (Original post by frozo123)
Don't worry I'll help lower the grade boundaries for F215 lol
I'll be joining you there ahaha, taking one for the team! Like I did today... you're welcome guys (Got in the range of 36-40) which could be a D or a B, damn why is it out of such a small amount
16. The only thing that's keeping me going is that fact that I got 294 ums last year ; /.
17. (Original post by cmfunk)
The only thing that's keeping me going is that fact that I got 294 ums last year ; /.
lol you don't even need to revise for f215 go away
18. (Original post by mybutton jammed)
Attachment 422677
Isn't oxidative phosphorylation both the cristae and the inner membrane space because protons got pumped there?
19. (Original post by games211)
for electron transport chain why cant u have more than 1 so unfair!!!
Electron transport chain is inner membrane and inner membrane space so I'm pretty sure you'll get the mark
20. For the fill in the gaps question I wrote adrenal cortex instead of just cortex, do you think I'll lose a mark?

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