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Edexcel A2 Biology SNAB 6BI04 ~ 6BIO5 June 2016 Watch

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    Why did the article have to be on genetic engineering, I suppose it's not too bad but last years was so much more interesting...
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    (Original post by FutureMedic97)
    T-cells:
    • They are a type of lymphocytes which mature in the Thymus (hence the name T-cells)
    • They can be subdivided into T-helper cells, T-killer cells and T-memory cells
    • They are involved in the activation of B-cells and T-killer cells:
    1. The macrophage is able to recognise the foreign antigen in the body.
    2. They engulf the foreign antigen in the process of phagocytosis (they engulf, cause the antigen to be enclosed in a vacoule known as phagosome then lysosyme fuses with the phagosome and causes enzymes to be released into the phagosome. These enzymes breakdown the antigen.)
    3. Then some of these proteins are presented on the MHC which is on the cell surface membrane.
    4. The T-helper cell binds to this using its CD4 receptors
    5. It becomes activated
    6. It releases cytokines
    7. These cytokines cause B-cells to become activated and T-killer cells to become activated.
    8. The activated B-cells divide by mitosis to form plasma cells and B-memory cells.
    9. The activated T-killer cells engulf any infected cells

    B-Cells
    • They mature in the bone marrow
    • They are activated by T-cells (as described above) to produce plasma cells and B-memory cells
    • Plasma cells secrete specific antibodies
    • B-memory cells remain in low quantities in the body until the same pathogen is encountered again. When this does happen, they divide into plasma cells and secrete antibodies against the pathogen

    I think that's about it!
    If I am missing anything please add it in....
    Thank you very much
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    Just looking at the article now :eek3:
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    Now that the article is available does anyone have any idea what to do
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    (Original post by Hellper)
    Now that the article is available does anyone have any idea what to do
    The article will give you ideas on what can be asked. As its to do with synthetic biology and genetic engineering just go over that.
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    (Original post by A-LJLB)
    The article will give you ideas on what can be asked. As its to do with synthetic biology and genetic engineering just go over that.
    ok, but the book does explain well enough about the genetic engineering and human genome project. what are your ideas on it
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    (Original post by Hellper)
    Now that the article is available does anyone have any idea what to do
    Go though the article and really understand what it's talking about first.Then analyse each paragraph and think of how it relates to the syllabus and possible questions they can ask. Brush up on your as as the article questions will draw on as knowledge too. The should be lists of potential questions that are released with the article also to go through

    Best of luck


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    (Original post by PsychoD)
    Go though the article and really understand what it's talking about first.Then analyse each paragraph and think of how it relates to the syllabus and possible questions they can ask. Brush up on your as as the article questions will draw on as knowledge too. The should be lists of potential questions that are released with the article also to go through

    Best of luck


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    ok understood, thanks.
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    (Original post by Hellper)
    ok understood, thanks.
    Well obviously genetic engineering, there's also mention of CO2 and fossil fuels so go over that. Ethics of the human genome project etc, the source of the article is at the bottom of the page it might be an idea to look at the original source too.
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    great, all the boring bits than.
    there is some information about the protein synthesis, plasmid so maybe all the basic topic 1 and 2
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    Really not a big fan of this year's pre release... hmmmph.
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    NEED HELP!! Please tell me where I could find a copy of Edexcel IAL 2016 June Biology Unit 5 pre-released scientific article (WBIO5/01). Thank you.
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    (Original post by 12103763d)
    NEED HELP!! Please tell me where I could find a copy of Edexcel IAL 2016 June Biology Unit 5 pre-released scientific article (WBIO5/01). Thank you.
    Just ask your teacher for it...


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    Any IAL biology unit 5 threads?
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    (Original post by PsychoD)
    Go though the article and really understand what it's talking about first.Then analyse each paragraph and think of how it relates to the syllabus and possible questions they can ask. Brush up on your as as the article questions will draw on as knowledge too. The should be lists of potential questions that are released with the article also to go through

    Best of luck


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    do u know when the potential questions are released?
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    how far are u guys with theory?


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    (Original post by ranz)
    how far are u guys with theory?


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    Finished around January time
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    (Original post by ranz)
    how far are u guys with theory?


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    We've still got to do thermoregulation, performance enhancing substances, immune suppression and joint injury in topic 7 and we've finished topic 8 but we did the last few bits really fast so I think we're gonna be doing some more work on that. One of my teachers is really good and the other one is new and doesn't know what he's doing so we're kinda screwed for topic 7! We're starting the synoptic article after easter I think? We might get it just before though so we can do work on it in the holidays

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    (Original post by ranz)
    do u know when the potential questions are released?
    Last year I remember being given the questions around the same time as the pre-release.... Ask your teacher first, if they don't know I'll see if I can find out
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    (Original post by PsychoD)
    Last year I remember being given the questions around the same time as the pre-release.... Ask your teacher first, if they don't know I'll see if I can find out
    im a private student, is it possible for anyone to send it to me if you have the questions?


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