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EDEXCEL Biology JUNE 2012 Pre-release article

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Reply 160
Original post by fudgesundae
thanks :smile:


has someone got the answers to these questions?
Reply 161
Original post by africananimals
Fantastic! Thanks so much for this! Its great that we can start to see a pattern of questions emerging now :smile:
ps: I will get back to you on the answers, let me write out and then answer them :smile:



could you mail me the answers if you have them please?
Reply 162
is there an audio version of this article?
Reply 163
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 ?


if you get it, can you send it to me or upload it here?
Reply 166
Original post by SnailFace
is there an audio version of this article?


you may just record your own voice & hear it :smile:
dont think theres an audio version of this article
Reply 167
just going over this threaddd... gosh you guys are amazinggg...all the information shared is superr.. :biggrin:
I'll share my stuff as soon as i start revising for it..
I really hope we all ace it :biggrin:
Reply 168
does anyone know whats the link to the unit 5 exam revision thread ?
Reply 169
ive got some questions plz answer :-

define oxygen debt.
why are rod cells more sensitive than cone cells ?
Reply 171
Original post by sammy_93
Is it only for me that these links show errors? Can someone plz post again with a similar link


Me 2oo. Can anyone please up-load it on another website?!
Reply 172
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
Reply 173
Hi, guys

i only realised how important the pre release is, when I found out how many marks it was worth.

I was wondering if anyone was pasting these questions into a word document, if so could you pleease post it.

thanks

good luck with your exams!!!
Original post by iesians
ive got some questions plz answer :-

define oxygen debt.
why are rod cells more sensitive than cone cells ?


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? :s-smilie:
Reply 175
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? :s-smilie:


hmmm u mean OXIDISE lactate into pyruvate.. :tongue:

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...?!
Original post by iesians
hmmm u mean OXIDISE lactate into pyruvate.. :tongue:

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...?!


Ah yeah... silly mistake of me pyruvate is oxidised (i am very tired! lol)
I think that what u said about the bipolar neurone is correct.
How can data be collected in a reliable format?
:s-smilie:

-repeats
-same/similar results

??
Reply 178
hello :smile: in paragraph 22, page 4 of the scientific article, what is meant by 'withdrawal-like state seen in drug dependence'? really dont understand in the context of the article. thanks!:smile::smile:
Hey can anyone explain to me what they were are trying to say on pages 60 of the SNAB book, the stuff below the heading 'DNA, lice and human evolution' and also on page 55? Both pages are so bludy confusing!

A brief summary would be nice! thankss )

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