[na_tasha]

(Original post by Heyimdec)
Night before results day, more than likely.

Great!

[msaleem]

Ok hey guys teachers have told me the following

Graph alcohol evaluate this conclusion etc

Yes decrease
After 3-4-5 increased risk
No control used so effects cannot be seen.
Correlation not causation et
Other named factor eg alcohol may affect people in different ways older people may respond to alcohol differently.

Yes dec
Respiration in the tissues question

Less respiration
Less atp produced
less substances moved against conc gradient
So less absorbed

7a) Facilitated diffusion

Channel protein water filled alow water soluble material, peptide not water soluble
Carrier proteins not specific to peptide so cant be taken up.


Diet

Salt = high bp
Cholestrol - antheroma
thrombosis
Saturated fat = more ldls
Higher risk of atheroma


oh and age question why similar ages used

More representative of the age group so results reliable.

[Mr XcX]

On the diet question do you think I will get marked down for mentioning smoking

[iAre Teh Lejend]

(Original post by Mr XcX)
On the diet question do you think I will get marked down for mentioning smoking

No, you can never get marked down, but if its not in the ms, it'll just be ignored.

[Nucleo]

(Original post by iAre Teh Lejend)
No, you can never get marked down, but if its not in the ms, it'll just be ignored.

Are you sure? Like you you write something and what you wrote afterwards contradicts it I remember my teacher saying they'll mark you down. Also im pretty sure you write something down wrong AND right they have to penalize you.. I mean your taking 2 guesses for 1 question lol... like 5+5= 10 OR 11 lol if you get what I mean

[Aftab888]

I reckon it will be 40, well i'm really hoping it is 40/60!

The cyanide question was hideous, totally unfair.

Most of the questions were quite indirect than the past papers.. Maybe it may even go a little lower than 40!

We can only hope for the best.

[thescientist17]

As much as I'm tempted to, not going to look at any of the posts about the exams. I have other exams so going to worry about those first instead of dwelling on the past- but just writing this to say that I hope everyone found it okay and especially to the re-sitters like me I hope it went better than the first time. Good luck with your results and BIO2.

[thescientist17]

But the cyanide question was awful, it was unclear whether the fact cyanide affects respiration meant that less sodium ions could be taken in, OR the fact that less sodium ions could be taken in meant that it affected respiration.

[Dassie]

http://store.aqa.org.uk/over/stat_pd...OUND-JAN12.PDF

This is the grade boundaries for AQA from January, so they'll be about similar for this paper (:

[ummy123]

(Original post by Abbers)
Atheroma
non-functional enzyme
enzyme(inhibitions/models)
1/2 lung disease questions

how did you know o.O

most of that came up.

have you any tips on how you knew what may have come up.

[sconter]

(Original post by Dassie)
http://store.aqa.org.uk/over/stat_pd...OUND-JAN12.PDF

This is the grade boundaries for AQA from January, so they'll be about similar for this paper (:

summer grade boundries are lower.

[ecokid]

(Original post by sconter)
summer grade boundries are lower.

I wish it was but this isn't really the case, summer exams generally have higher grade boundaries, at least for AQA Biology:

June 2011 BIO1: A(45/60) - Jan 2011 BIO1: A(41/60)

June 2010: BIO1:A (45/60) - Jan 2010 BIO1: A (38/60)

It's probably due to the fact that June is the last chance saloon for AQ2 students to boost their grades, whilst AS students tend to focus more as the AS result is important for Uni applications in September, and not having Christmas get in the way also helps! Some have even speculated that winter exams are set to be harder by the exam boards to make more students retake them in the summer to increase their revenue, but who knows?!

[thenumber2goose]

Just to clarify on the cyanide question. I'm certain that the question asking about sodium said "Using information from the question and your own knowledge...". Nowhere in the question was it mentioned that cyanide was an inhibitor and I doubt the exam board expects students to know this as part of their "own knowledge" because it is not part of the specification.

[blueclearsky]

(Original post by Nucleo)
Are you sure? Like you you write something and what you wrote afterwards contradicts it I remember my teacher saying they'll mark you down. Also im pretty sure you write something down wrong AND right they have to penalize you.. I mean your taking 2 guesses for 1 question lol... like 5+5= 10 OR 11 lol if you get what I mean

my teacher said that a wrong point cancels out with a right point so for example, if they asked u for 2 points in an answer and u mention 3 and the last point is wrong, u will only get one mark for that question. The examiner cant choose to ignore a contradictory point. they only ignore when u've mentioned something irrelevant to the question.

[blueclearsky]

(Original post by Heyimdec)
Night before results day, more than likely.

They should be there around 2 weeks before results day.

[blueclearsky]

i remember putting condensation instead of hydrolysis for the amino acids/protein question for some reason :/ does anyone remember the exact wording of the question?

[master y]

(Original post by blueclearsky)
i remember putting condensation instead of hydrolysis for the amino acids/protein question for some reason :/ does anyone remember the exact wording of the question?

i did that as well..... somink about how are amino acids formed FROM protein

[blueclearsky]

(Original post by leeandrewarmstrong)
Just to clarify on the cyanide question. I'm certain that the question asking about sodium said "Using information from the question and your own knowledge...". Nowhere in the question was it mentioned that cyanide was an inhibitor and I doubt the exam board expects students to know this as part of their "own knowledge" because it is not part of the specification.

but cyanide is mentioned in the text book as an example of a competitive inhibitor although you're right we dont need to know this in particulat detail. it was also shown from the graph that it was inhibiting the uptake of sodium ions as the graph remained constant at a high level.

[blueclearsky]

(Original post by master y)
i did that as well..... somink about how are amino acids formed FROM protein

then if thats the case the answer is hydrolysis :/ dammit, another mark lost! how did u find the paper?

[master y]

(Original post by blueclearsky)
then if thats the case the answer is hydrolysis :/ dammit, another mark lost! how did u find the paper?

It was fine apart from really stupid mistakes like that one!! Grr i should have carefully read the question, then that's one mark more!