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    (Original post by Dan205)
    Hoping I'm ready for this in time! Is anyone else retaking unit one as well and finding it a lot easier after doing more bio?

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    I'm retaking unit 1 but I'm screwed coz I haven't even started revising for it! I'm so scared I simply don't have time!!!


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    (Original post by Ruby_1696)
    I'm retaking unit 1 but I'm screwed coz I haven't even started revising for it! I'm so scared I simply don't have time!!!


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    Just have a look through it, do a past paper or two and see how you feel then, honestly a lot of the stuff kinda up to the A2 modules, so hopefully it should all be okay
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    (Original post by Dan205)
    Just have a look through it, do a past paper or two and see how you feel then, honestly a lot of the stuff kinda up to the A2 modules, so hopefully it should all be okay
    Huuh I will try my best to do that then thanks can I be nosey and ask what u got last year for unit 1 to make u wanna repeat? I got a U lmao. But an A (full UMS) in unit 2 and an A in the isa. I swear I thought I did well in unit 1 and turns out I did the complete opposite whoops!


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    (Original post by ppatience)
    Hi,so is refractory period the same as hyperpolarisation?
    No, hyperpolarisation occurs during the refractory period.

    So first the voltage gated sodium ion channels close, than the potassium ion channels open, however there is a slight 'overshoot' in the diffusion of potassium out of the membrane, causing the membrane to be more negative than the resting membrane potential (hyperpolarisation) . The sodium potassium pump actively trasnport 2 K ions in and 3 Na ions out of the membrane until the resting membrane potential is established.
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    (Original post by Ruby_1696)
    Huuh I will try my best to do that then thanks can I be nosey and ask what u got last year for unit 1 to make u wanna repeat? I got a U lmao. But an A (full UMS) in unit 2 and an A in the isa. I swear I thought I did well in unit 1 and turns out I did the complete opposite whoops!


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    Yeahh good luck with it Yeahh nosy is fine haha I got a C, 65 ums , but got two marks off full ums in the other units, so I'm just trying to boost chances of getting an A really hahaha it's always the way really
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    (Original post by Dan205)
    Yeahh good luck with it Yeahh nosy is fine haha I got a C, 65 ums , but got two marks off full ums in the other units, so I'm just trying to boost chances of getting an A really hahaha it's always the way really
    Woaah! U still did awesome lol yeah there's no worries with u not getting an A!!!! Smart arse lol just messing. All I want is a B/C haha. Doubt I can even get that :/ oh well. Whatever happens happens...


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    can someone please help me with this question, its a 2 marker but i cant understand what it wants me to put, "Transcriptional factors are important in the synthesis of particular proteins.Describe how? Thank you
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    (Original post by Ruby_1696)
    Woaah! U still did awesome lol yeah there's no worries with u not getting an A!!!! Smart arse lol just messing. All I want is a B/C haha. Doubt I can even get that :/ oh well. Whatever happens happens...


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    Hahaha cheers Ohhh I'm sure you'll be fine! what are you aiming to do next year?
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    (Original post by djhodnett)
    can someone please help me with this question, its a 2 marker but i cant understand what it wants me to put, "Transcriptional factors are important in the synthesis of particular proteins.Describe how? Thank you
    I guess it is asking you to describe how transcriptional factors can turn on/off certain genes in cells.
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    (Original post by Dan205)
    Hahaha cheers Ohhh I'm sure you'll be fine! what are you aiming to do next year?
    ️hahaha hopefully Geography lol. Hbu?


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    (Original post by Ruby_1696)
    ️hahaha hopefully Geography lol. Hbu?


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    Where? genetics at Liverpool hopefully
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    (Original post by Dan205)
    Where? genetics at Liverpool hopefully
    Dayum u so smart boyyy haha not so sure yet. Either Bangor or Liverpool


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    (Original post by Ruby_1696)
    Dayum u so smart boyyy haha not so sure yet. Either Bangor or Liverpool


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    Hahahah cheers Yeahh come to Liverpool, such a great place
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    (Original post by Dan205)
    Hahahah cheers Yeahh come to Liverpool, such a great place
    No problemo yeaahhh LOVE Liverpool lol. Been once haha. I don't know what to choose haha oh well. Let's get exams over with and then see


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    (Original post by Ruby_1696)
    No problemo yeaahhh LOVE Liverpool lol. Been once haha. I don't know what to choose haha oh well. Let's get exams over with and then see


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    D'ya wanna talk via message so we don't clog this forum up?
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    Hey, just wondered if someone could help answer a question I have for some biology coursework. I'm a mature student and biology is my weak area. it's about lung volumes but I'm not sure if I understand the question properly. Is there anyone who is good at biology/knows about respiration/lung volumes who I can private message who is willing to take a few mins to help?

    Thanks :/
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    (Original post by djhodnett)
    can someone please help me with this question, its a 2 marker but i cant understand what it wants me to put, "Transcriptional factors are important in the synthesis of particular proteins.Describe how? Thank you
    It's basically just asking for the importance of transcriptional factors.
    My guess would be:
    • Transcription needs transcription factors to begin
    • Transcription factors have a site that binds to a specific DNA site called the promoter region
    • When it binds, the region of DNA is stimulated to begin transcription
    • Transcription produces mRNA molecules which go on to be translated into polypeptides/proteins
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    Can't wait for this -.-


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    (Original post by bradlydc)
    I guess it is asking you to describe how transcriptional factors can turn on/off certain genes in cells.
    yeah.the whole thing about them going into the nucleus so DNA can bind onto them to switch on genes for transcription. Something like that I think
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    Can someone help me with this question?
    How many DNA molecules will have been produced from one molecule of DNA after 6 complete cycles of PCR?
    I think there's an equation or something but I have no idea!
 
 
 
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