AQA Biology AS New Spec - 26th May and 7th June

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Reply 80

hxrrict

Original post by WilliamCL

Can come one pls tell me if there was a fish question?

nope

Reply 81

smilj012.206

Original post by nav5678

what did people write for a statistical test?

i wrote calc standard deviation and do error bars , overlap = cvhance =non signifficatnt no overlap =significant

Reply 82

Oddwatermelon

Grade boundaries:
A - 22
B - 18
C - 13
D - 9
E - 4
U - 1

Seems about accurate.

Reply 83

neyscar

Original post by SANTR

Yes!! what was the shape of your graph?

Well I plotted each point and then did a line of best fit which just showed a steady increase - wasn't too steep. The actual points themselves didn't form a perfect line or anything, they were slightly scattered either side of the best fit line and then of course the last two were the same value.

Reply 84

Yasemin29

Original post by melinalouise

that felt like a paper on enzymes I swear they were in every question, bit confusing. I got 22.5 for the ROR, but I messed up the magnification cos i did the wrong conversion :frown:

For the graph question did other people get answers x10^-3?

Yes!!! I got that too x

Reply 85

selvisin

Original post by nav5678

what did people write for a statistical test?

I wrote SD, because it allows easy comparison :/

Reply 86

SANTR

Original post by neyscar

Yes!
What was your explanation?

Reply 87

DeRerumNatura

If someone can get me a copy of the paper or can remember most the questions I can put together an unofficial mark scheme.

Reply 88

ali99

Original post by hxrrict

i got 22.5 but i dont think its right im not sure i even know how to calculate it i just divided the value on the left axis by 10

I did this too!

Reply 89

BamSrown

Original post by SANTR

Predictions on grade boundaries, it's out of 75,?

It's a new spec so you can't really tell I would think it would be about:
60 - A
52 - B
44 - C
36 - D
28 - E

Reply 90

selvisin

Original post by Oddwatermelon

Grade boundaries:
A - 22
B - 18
C - 13
D - 9
E - 4
U - 1

Seems about accurate.

/u/Oddwatermelon for AQA Chief Examiner

Reply 91

ali99

Original post by neyscar

For the magnification question, who else got something like 21,000? I followed all the steps but I think my answer looks weird, I'm not sure.

Yeah i got 21,000 too - 84,0000/ 4

Reply 92

SANTR

Original post by BamSrown

It's a new spec so you can't really tell I would think it would be about:
60 - A
52 - B
44 - C
36 - D
28 - E

I doubt an A would be 60.
70-75% is always an A.
70-75% = about 49-53 for an A.

I divided by 3600

lol shows your knowledge about grade boundaries...

Reply 95

Aqsa1912

I don't think the grade boundaries would be too high considering the new spec and all

Reply 96

Senpai

Distribution of questions was terrible, felt like alot of the content was missed out :/

Reply 97

Ma11

Found that an extremely hard paper. Revised for so long covering every topic. Just to have the exam paper being mostly on enzymes!

Reply 98

Gswp

Original post by SANTR

I doubt an A would be 60.
70-75% is always an A.
70-75% = about 49-53 for an A.

yeah this is much more believable

Reply 99

neyscar

Original post by SANTR

Yes!
What was your explanation?

I said that the graph shows that as time passes, the rate of sucrose hydrolysis increases which suggests that the number of plant cells is growing at an increasing rate because this hydrolysis has to occur within the plant cells so more hydrolysis suggests more cells present and thus more growth of the plant. Wasn't entirely sure on this answer but I think that's the sort of thing they were after.