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    Hey guys, im not sure if these were posted before, but in case they weren't here are some really useful Biol Unit 5 notes :

    https://7def787516e26c878dc93b38d6ce...%20A-Level.pdf

    hope they help
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    (Original post by rashed_k)
    how long do you think the essay should be?
    Mine are about 600-700 words, which is about 2 A4 lined pages; which equates to about 4 pages in the exam paper. It does depend on how large your writing is though.
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    Has anyone got the link to pre written essays for all the essays that have previously comee up as I don't think I'll have enough revision time to do the essays but I would like a but of a plan
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    (Original post by Hudl)
    Has anyone got the link to pre written essays for all the essays that have previously comee up as I don't think I'll have enough revision time to do the essays but I would like a but of a plan
    I have four essays which have been marked at A/A* grade if they are any use?
    The essays are:
    Causes of Disease in Humans
    Uses of DNA Technology
    Importance of Shapes Fitting Together
    CO2 may affect organisms directly and indirectly
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    (Original post by prophetkid)
    I have four essays which have been marked at A/A* grade if they are any use?
    The essays are:
    Causes of Disease in Humans
    Uses of DNA Technology
    Importance of Shapes Fitting Together
    CO2 may affect organisms directly and indirectly
    Yes please upload them on here thanks or send them via pm

    but surely someone would have done all the essays to an A* level and posted them online, surely
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    If I post my essay in about half hour would anyone be willing to mark it? I'm not aiming for full marks so don't expect much, I'd just like an idea of how I'm doing ☺️


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    (Original post by Hudl)
    Yes please upload them on here thanks or send them via pm

    but surely someone would have done all the essays to an A* level and posted them online, surely
    Here you go
    Attached Files
  1. File Type: docx Carbon dioxide may affect organisms directly or indirectly.docx (14.3 KB, 223 views)
  2. File Type: docx Uses of DNA Technology.docx (13.2 KB, 211 views)
  3. File Type: docx The Importance of Shapes Fitting Together in Cells & Organisms.docx (12.9 KB, 197 views)
  4. File Type: docx The Causes of Diseases in Humans.docx (14.3 KB, 173 views)
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    I'd really appreciate it if someone could glance through my essay and let me know how I'm doing. As said before I'm not aiming for full marks so don't expect a spectacular essay. Ps sorry if you can't read it my writing gets very messy when I rush Attachment 425455
    Attachment 425457 Name:  ImageUploadedByStudent Room1434024017.706572.jpg
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    Name:  ImageUploadedByStudent Room1434024062.118727.jpg
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    Thank you


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    (Original post by sleepisheaven)
    3-5 sides I hear


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    Thanks!
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    (Original post by prophetkid)
    Mine are about 600-700 words, which is about 2 A4 lined pages; which equates to about 4 pages in the exam paper. It does depend on how large your writing is though.
    Cheers
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    Do essays have to include diagrams and info/examples that aren't on the spec?
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    If the essay was on proteins and the role of proteins, what would everyone suggest should be included ?
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    (Original post by lyricallies)
    If the essay was on proteins and the role of proteins, what would everyone suggest should be included ?
    Enzymes involved in the digestive system (Lactase, Maltase etc.)
    Protein structure
    Haemoglobin - involved in associating and dissociating oxygen, could add oxygen dissociation curves too (High affinity, Low affinity)
    Receptor proteins and relay proteins involved in cell division (proto-oncogenes and tumour suppressor genes)
    Polypeptide synthesis
    Could maybe talk about photosynthesis&nitrogen cycle they involve enzymes too.
    Muscle contraction - Tropomyosin & Troponin
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    (Original post by lyricallies)
    If the essay was on proteins and the role of proteins, what would everyone suggest should be included ?
    1 - primary/secondary/tertiary structure of a protein
    2 - Structural roles
    3 - Movement involving muscles
    4 - Channel/ carrier proteins (transport)
    5 - Enzymes
    6 - Chemical Hormones/Mediators

    Describe each one about with 100-125 words including two examples in each so for Structural you could use the examples of keratin and collagen. Talk about their structure then why it is important. Repeat and watch the marks pile up
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    Thankyou that's really useful
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    (Original post by Ozy96)
    Enzymes involved in the digestive system (Lactase, Maltase etc.)
    Protein structure
    Haemoglobin - involved in associating and dissociating oxygen, could add oxygen dissociation curves too (High affinity, Low affinity)
    Receptor proteins and relay proteins involved in cell division (proto-oncogenes and tumour suppressor genes)
    Polypeptide synthesis
    Could maybe talk about photosynthesis&nitrogen cycle they involve enzymes too.
    Muscle contraction - Tropomyosin & Troponin
    Don't talk about polypeptide synthesis as you will probably lose marks because it's irrelevant to the title
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    (Original post by Vengefulcandy)
    Don't talk about polypeptide synthesis as you will probably lose marks because it's irrelevant to the title
    Yeah you're right, my bad. we could also talk about how translation is prevented by siRNA how it guides the enzyme and whatnot.
    Also, what do you think of the likelihood this will come up? It hasn't been asked yet I don't think...It would be god sent if it does come up. Although AQA aren't that generous.
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    Can there be an essay on transport systems or is that too vague?
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    I was thinking there could be one on ATP
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    Don't suppose anyone has 5mins to go through my essay above 😊


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