That was really easy, boundaries will probably be a fair bit higher than the last few times.

I think AQA is finally learning from their mistakes on past unit 4 papers.

Reply 866

Laura-Robbie

yep definately you could actually understand what they wanted from each question instead of getting quite confused lol

Reply 867

donni10

What did you guys get on the hardy weinburg question? I think I misread it..

Reply 868

Laura-Robbie

for june 2010 younonly needed 35 for an a but i reckon it could even be in the 50's for this one or at least high 40's

Reply 869

Laura-Robbie

i got 0.04 for the homozygous but i don't think i put it in a percentage properly coz i just wrote 0.04 but i think its meant to be 4 asd a percentage but hopefully ill get the marks dfor the working out, why what did you get for hardy weinberg??

Reply 870

donni10

Yeah I got 4%, coming out of the exam my friend said it was work out the homozygous dominant, BB, or p^2.

Reply 871

Laura-Robbie

yeh thats what i worked out , ii just forgot to change it to a percentage oops lol

Reply 872

black_vine

Feel a bit uneasy after that. I felt like they probably wanted more form that last 6marker where i just told them a concise Calvin Cycle when I was pushed for time.
And the oil glands/reliabilty? I dunno if I worded myself correctly. In general I had something to say for everything.
But I think the grade boundaries will be a bit high.

Reply 873

Laura-Robbie

i know what you mean about the 6 marker it seemed like there wasn't enough to write about ti but i guess if you write all you know then what more can they want unles it's something not on the syllabus but i like the last three questions, they seemed to be okay

Reply 874

Laura-Robbie

you know the one about the horse eating extra food in the summer what did people say it used the extra nutrients for. i know its only one mark but i wasn't too sure what to out, i put growth but i dont know if that is right or not

Reply 875

fsaeed20

what did every one get for the nirogent 5 marker question

Reply 876

Laura-Robbie

i wrote about ammonification but i rushed that one for a bit because first i wrote about nitrogen fixarion and realised i hadn't read the question properly and had to redo it lol

Reply 877

fsaeed20

Original post by Laura-Robbie

i wrote about ammonification but i rushed that one for a bit because first i wrote about nitrogen fixarion and realised i hadn't read the question properly and had to redo it lol

i wrote about ammonification and then nirification, it was 5 marks so i think you have to include both.

Reply 878

Stratos

Original post by Laura-Robbie

I wrote that the nutrients were used to synthesize proteins e.g. microfibrils in muscles(actin fillament and myosin) therefore growth.

Original post by fsaeed20

what did every one get for the nirogent 5 marker question

I wrote about extracelular decomposition, but first about intracellular digestion in invertebrates which digest the dead leaves into simpler organic molecules, afterwards saprobionts would further decompose the organic matter by releasing enzymes which break down the organic molecules and then absorb the usefull substances, ammonia is a waste product and is released into the atmosphere, nitrifying bacteria in the soil would convert ammonia into NO2 and then further nitrify into NO3, NO3 is soluble and can be absorbed into the roots of plants by active transport where it's used for biosynthesis(DNA replication, protein synthesis).

Reply 879

*QueenBeee

I thought the exam was quite hard, couldnt quite get what some of the qu were getting at, a few qu:
what did everyone put for the reason human synthesising lots of atp?
where did u put ur ticks in the first qu?
the negative correlation coefficient?
the one about pathogens??

any help, much appreciated....i will rep!