Results are out! Find what you need...fast. Get quick advice or join the chat
Hey there Sign in to join this conversationNew here? Join for free

EDEXCEL Biology JUNE 2012 Pre-release article

Announcements Posted on
    • 0 followers
    Offline

    ReputationRep:
    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)

    • 0 followers
    Offline

    ReputationRep:
    (Original post by fudgesundae)
    thanks
    has someone got the answers to these questions?
    • 0 followers
    Offline

    ReputationRep:
    (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?
    • 1 follower
    Offline

    ReputationRep:
    is there an audio version of this article?
    • 9 followers
    Offline

    ReputationRep:
    (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?
    • 9 followers
    Offline

    ReputationRep:
    New questions for the articles :

    https://rapidshare.com/files/8636807...y-STAFFORD.pdf


    https://rapidshare.com/files/4160007...ford-Final.pdf
    • 1 follower
    Offline

    ReputationRep:
    thank youuu
    • 13 followers
    Offline

    ReputationRep:
    (Original post by SnailFace)
    is there an audio version of this article?
    you may just record your own voice & hear it
    dont think theres an audio version of this article
    • 13 followers
    Offline

    ReputationRep:
    just going over this threaddd... gosh you guys are amazinggg...all the information shared is superr..
    I'll share my stuff as soon as i start revising for it..
    I really hope we all ace it
    • 13 followers
    Offline

    ReputationRep:
    does anyone know whats the link to the unit 5 exam revision thread ?
    • 7 followers
    Offline

    ReputationRep:
    ive got some questions plz answer :-

    define oxygen debt.
    why are rod cells more sensitive than cone cells ?
    • 3 followers
    Offline

    ReputationRep:
    Is it only for me that these links show errors? Can someone plz post again with a similar link
    • 53 followers
    Offline

    ReputationRep:
    (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?!
    • 13 followers
    Offline

    ReputationRep:
    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
    • 1 follower
    Offline

    ReputationRep:
    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!!!
    • 0 followers
    Offline

    ReputationRep:
    (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?
    • 7 followers
    Offline

    ReputationRep:
    (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?
    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...?!
    • 0 followers
    Offline

    ReputationRep:
    (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...?!
    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.
    • 55 followers
    Offline

    ReputationRep:
    How can data be collected in a reliable format?


    -repeats
    -same/similar results

    ??
    • 0 followers
    Offline

    ReputationRep:
    hello 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!

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?
  2. this can't be left blank
    this email is already registered. Forgotten your password?
  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide to join now Processing…

Updated: June 22, 2012
New on TSR

GCSE results day

How to make sure you're prepared for Thursday

Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.