# AQA Biology Unit 1 - Unofficial Mark scheme

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1. (Original post by haarithiop)
I know I lost the mark on the indicator question and the 0.666 I didn't realise it asked for a percentage so I didn't multiply by 100 lol. Turns out I can't read but other than that I may have lost 1 mark on the horse question and one on the microorganism decay. That's about it, the rest was pretty easy, should get 50+
Umm if you put 0.66 then you did x100 or else you'd have got 0.0066! All the people saying 67% are wrong
2. At least June 2012 has a lot of the spec on it
3. What would 32/60 be?
4. (Original post by Cirsium)
Grade boundaries aren't agreed until after all the papers are marked. Nobody knows.
i mean what grade roughly looking at other years
5. (Original post by Ashleybendal)
What do you think an A and a B would be?
If they lower A* to 39 A will be 34 and B 26 (but that only happened in june 2012 when the spec was new so i doubt it will happen again)
If A* is 45 A will be 37 and B 29 (if they decide to be mean and think the paper was fine)
If A* is 42, A will be 36 and B 28 (this is something that is likely to happen if the overall statistics show low grades of students then they will have to lower the grade boundaries)
If A* is above 45 we all are f***ed
6. The question was:

2,000,000
----------------ᅠᅠX ᅠ 100
300,000,000

2
--
3

=0.67%
7. (Original post by McFlufflepants)
Wrong 0.7% because 0.666 rounds to 0.7 not 0.6
I personally think that this year, A* will be 41/60. Here are my reasons:

In June 2012, A* was 39/60. Some people may say that it was because it was a new spec. However, in June 2014, A* was 44.
Given that today's exam was possibly the hardest ever in the series, I think A* being 41/60 a pretty good prediction
What would you say a B grade would be?
9. (Original post by Ahmed74)
I swear that's right?
That was right!
10. Why was is a scatter graph?? :s
11. (Original post by _Xenon_)
i mean what grade roughly looking at other years
It's been 20 for a C the last two years, 24 the year before that. Could be a C, could be a D.
12. (Original post by Ashleybendal)
What would 32/60 be?
i would gess a 'B' but im not sure?
13. (Original post by InneRs)
Many people put lichens.
But, it was asking for ANIMAL
I put if mayfly larvee are preaent then the water is unpolluted
14. (Original post by lou2471)
Why was is a scatter graph?? :s
To allow you to look for correlation between two continuous variables.
15. (Original post by Josiebetts)
That was right!
🌞🌞
16. (Original post by mxn)
If they lower A* to 39 A will be 34 and B 26 (but that only happened in june 2012 when the spec was new so i doubt it will happen again)
If A* is 45 A will be 37 and B 29
If A* is 42, A will be 36 and B 28
If A* is above 45 we all are f***ed
Lets pray the grade boundaries are low considering the paper was really hard!
17. (Original post by Cirsium)
Firstly, June 2012 it was not 39. It was 26 (Yes, I know!!)
Secondly, absolutely no way that this year's paper is the hardest ever. June 2012 is nasty, and January 2013 was an absolute bastard.
41 is really low given the last 3 years have been 45, 44 and 47
I can assure you that in June 2012, A* was 39/60.

In fact, you can go here: http://www.aqa.org.uk/exams-administ...t-marks-to-ums
and check it yourself
18. (Original post by lou2471)
Why was is a scatter graph?? :s
I put because it is catagoric data but that is probably wrong
19. (Original post by Fletch7878)
I put if mayfly larvee are preaent then the water is unpolluted
20. (Original post by Cirsium)
Umm if you put 0.66 then you did x100 or else you'd have got 0.0066! All the people saying 67% are wrong
oops made a mistake in writing that, I got 0.0067 and didn't times by 100

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