EDEXCEL Biology JUNE 2012 Pre-release article
Biology exam discussion - share revision tips in preparation for GCSE, A Level and other biology exams and discuss how they went afterwards.
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Re: EDEXCEL Biology JUNE 2012 Pre-release article
something to do with post-transcriptional modification could come up.. because DNA methylation is a type of post-translational modification.. it controls gene expression (by switching certain genes on or off).. it is an epigenetic mechanism (environmental factors causing genes to behave/express themselves differently)
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Re: EDEXCEL Biology JUNE 2012 Pre-release article(Original post by africananimals)
Fantastic! Thanks so much for this! Its great that we can start to see a pattern of questions emerging now
ps: I will get back to you on the answers, let me write out and then answer them
could you mail me the answers if you have them please? -
Re: EDEXCEL Biology JUNE 2012 Pre-release articleif you get it, can you send it to me or upload it here?(Original post by chocobiz)
hey
did anyone come across this website ?
http://edexcelbiosolutions.com/
it seems very useful for unit 5 article..
and does anyone have this pdf file ? -
Re: EDEXCEL Biology JUNE 2012 Pre-release article
New questions for the articles :
https://rapidshare.com/files/8636807...y-STAFFORD.pdf
https://rapidshare.com/files/4160007...ford-Final.pdf -
Re: EDEXCEL Biology JUNE 2012 Pre-release articlethank youuu(Original post by arnab)
New questions for the articles :
https://rapidshare.com/files/8636807...y-STAFFORD.pdf
https://rapidshare.com/files/4160007...ford-Final.pdf
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Re: EDEXCEL Biology JUNE 2012 Pre-release articleyou may just record your own voice & hear it(Original post by SnailFace)
is there an audio version of this article?
dont think theres an audio version of this article -
Re: EDEXCEL Biology JUNE 2012 Pre-release articleIs it only for me that these links show errors? Can someone plz post again with a similar link(Original post by arnab)
New questions for the articles :
https://rapidshare.com/files/8636807...y-STAFFORD.pdf
https://rapidshare.com/files/4160007...ford-Final.pdf -
Re: EDEXCEL Biology JUNE 2012 Pre-release articleMe 2oo. Can anyone please up-load it on another website?!(Original post by sammy_93)
Is it only for me that these links show errors? Can someone plz post again with a similar link -
Re: EDEXCEL Biology JUNE 2012 Pre-release article
As i promised, here are some of the questions I came up with..i'll post more at night
discuss the effect of media, body image and dieting on your body.
describe the effect/function/structure of BAT on body weight.
where is BAT stored?
describe the effect( advantages & disadvantages) of blockbuster weight pills on your health e g side effects.
what are anti-obesity therapies? advantages & disadvantages of using them.
describe the effect of obesity on body health.
what is the difference between obese and obesity.
what are the treatments provided by the NHS to treat obesity.
ways to reduce obesity.
how has obesity increased over the years.
describe ways to measure obesity.
why is obesity considered " detrimental to health"
describe the effect/function/structure/place where WAT is stored.
what are triglycerides? structure/effect/function/place in the body it is found.
why is apple body shape considered more dangerous than fat stored around the hips and thighs.
symptoms of type 2 diabetes/heart disease/cancer -
Re: EDEXCEL Biology JUNE 2012 Pre-release articleOxygen debt is caused by anaerobic respiration. It is the oxygen needed to reduce lactate into pyruvate into the Krebs cycle to produce CO2 and H2O.(Original post by iesians)
ive got some questions plz answer :-
define oxygen debt.
why are rod cells more sensitive than cone cells ?
I am not specifically sure why rod cells are more sensitive but I think it is due to the fact that they can work in dim-light conditions as rhodopsin is a very sensitive pigment to light?
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Re: EDEXCEL Biology JUNE 2012 Pre-release articlehmmm u mean OXIDISE lactate into pyruvate..(Original post by avataraang)
Oxygen debt is caused by anaerobic respiration. It is the oxygen needed to reduce lactate into pyruvate into the Krebs cycle to produce CO2 and H2O.
I am not specifically sure why rod cells are more sensitive but I think it is due to the fact that they can work in dim-light conditions as rhodopsin is a very sensitive pigment to light?

i think it has to do something with the fact that a bunch of rod cells connect to a single bipolar cell while each cone cell has one bipolar cell..hmmmmmm whatdya think...?! -
Re: EDEXCEL Biology JUNE 2012 Pre-release articleAh yeah... silly mistake of me pyruvate is oxidised (i am very tired! lol)(Original post by iesians)
hmmm u mean OXIDISE lactate into pyruvate..
i think it has to do something with the fact that a bunch of rod cells connect to a single bipolar cell while each cone cell has one bipolar cell..hmmmmmm whatdya think...?!
I think that what u said about the bipolar neurone is correct.
