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AQA BIOL2~3rd June 2013~AS Biology (Now Closed)

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Reply 4200

Jaydude

So was the answer for insects ventilation per minute 6 or 6.7?

Reply 4201

Meathead-jack

Did anyone else write at one point "size doesn't matter" and have a little chuckle??

Reply 4202

dooobie_

Original post by Seatbelt

From my memory:
I wrote down centromere for the first answer, and its function to combine two sister chromatids together (It was two marks so im puzzled)

I got a number of 6.6667 for some spiracle movement per minute question

I got a number around of 350% percentage increase

(I have a really bad memory)

Heres a question:
Would I get the mark for putting down, species of snakes and that all snakes are adults (so they are all sexually active) for question 9 when its talking about the control variables??

It should get you the marks, but in practice papers it said specifically put 'age of species'. I think they'll be lenient though!

Reply 4203

jjgaffney

Original post by Rebeelouise

According to unofficial mark scheme I got 69.. better than I thought...

where do you get the unofficial mark scheme?

Reply 4204

spocklock

Going by previous grade boundaries and people's responses, although it was a hard paper people seem to be getting decent marks in it (by the unofficial mark scheme), so I think grade boundaries will be about 61/62 for an A and then -7 for every grade below. Lowest I think it would be is 59 for an A but that's my personal opinion and isn't based on anything other than gut instinct and past papers.

Reply 4205

HearingWhat?

Also, for the conclusion you had to make I put they were more attracted to the snakes rather than the filter paper of their respective sizes.

What was the question for 7d?

Reply 4206

1144876

What do you guys reckon 70/85 would be? Ums wise?

Reply 4207

MintCrepz

Would you say a female snake that was unable to produce fatty acids is a control?

Reply 4208

cheetahs56

Original post by nich01as

What do you guys reckon 70/85 would be? Ums wise?

Probably 145+

Posted from TSR Mobile

Reply 4209

WaqasK

Original post by Richyp22

For the control variable during snake courtship. Do you guys think ill get any marks for-

- Amount of lipid on the filter
- Size of cage

?

I wrote amount of lipid and size of paper ? Sounds decent , as variables ?

Reply 4210

Mangodepo11

Original post by WaqasK

I wrote amount of lipid and size of paper ? Sounds decent , as variables ?

Yes I think their will be loads of variable. As theres so many things that could effect courtship. First one is definately right, not sure if they'd allow second

Reply 4211

Blobar

Original post by cheetahs56

Probably 145+

Seems plausible seeing 140 UMS is max. Lol.

Reply 4212

Blobar

Original post by Richyp22

Yes I think their will be loads of variable. As theres so many things that could effect courtship. First one is definately right, not sure if they'd allow second

What about size of male? They wouldnt want a small D.

Reply 4213

KingersZD

According to the mock mark scheme I got 60 marks, but I really doubt that haha

Anyone know what 60/50 marks would be Grade wise :smile:

Reply 4214

1144876

Original post by cheetahs56

Probably 145+

Posted from TSR Mobile

So full marks you reckon? thanks :smile:

Reply 4215

MintCrepz

Would you say a female snake that was unable to produce fatty acids is a control?

Reply 4216

Mangodepo11

Original post by Blobar

What about size of male? They wouldnt want a small D.

I was going to put that but then it said males choosen at random so not sure tbh.

And for ppl wondering what full ums will be. For jan13 full ums was 70/85 that paper was way easier than the one today. Full ums will be 67/68 no higher.

Reply 4217

Swords N Thorns

I don't think we can really compare it to Jan 2013 as this is the resit unit for most and boundaries are usually a bit lower. However, it was evidently much harder than June 2012. My predictions are around 72 for full marks/low 60s for an A. :smile:

Reply 4218

Futuristicmedic