AQA Human Biology unit 4 (HBIO4) - 15th June 2012

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  1. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
    • Location: Manchester
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by TerminalVelocity)
    Hopefully someone will put an unofficial mark scheme up soon
    Not too hopeful, hardly anyone does Human Biology. We're a real rare breed
  2. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
    • Location: Manchester
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    Not looking forward to HBIO5 Just happy it's smaller than unit 4 Although...the essay :coma:
  3. sparklingstar101's Avatar
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    • Location: Cheshire
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    I thought the paper wasn't too bad, the one in January was awful I have no idea how I actually managed to get an E!

    I'm worried about the essay in unit 5 my teacher gave us the headings of past paper essays and nothing else so I don't know how I'll write this essay!
  4. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by sparklingstar101)
    I thought the paper wasn't too bad, the one in January was awful I have no idea how I actually managed to get an E!

    I'm worried about the essay in unit 5 my teacher gave us the headings of past paper essays and nothing else so I don't know how I'll write this essay!
    Agreed on that, what school dya go? I may actually know ya

    Same unit 5 is stressing me out, also what questions did you find hard on this paper?
  5. sparklingstar101's Avatar
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    • Location: Cheshire
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by Doctor.)
    Agreed on that, what school dya go? I may actually know ya

    Same unit 5 is stressing me out, also what questions did you find hard on this paper?
    I go EPCHS The ones about PCR, I really don't like genes and I wasn't too sure about the muscles question but I wrote at least something to try and get a few marks!
  6. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by sparklingstar101)
    I go EPCHS The ones about PCR, I really don't like genes and I wasn't too sure about the muscles question but I wrote at least something to try and get a few marks!
    Aw nope I don't know then

    The PCR one was a little annoying lol. Muscle contraction was so random! I didn't know what to write really Just put whatever I could think

    I liked it more than past papers but it was pretty hard overall hopefully we've done good
  7. sparklingstar101's Avatar
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    • Location: Cheshire
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by Doctor.)
    Aw nope I don't know then

    The PCR one was a little annoying lol. Muscle contraction was so random! I didn't know what to write really Just put whatever I could think

    I liked it more than past papers but it was pretty hard overall hopefully we've done good
    On all the past papers I've been getting over 60% which is what I need to get a C overall just hoping the markers are kind haha!
  8. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by STALKER0098)
    I know how to structure them, I think I might be able to help u if u want! we practiced these in class.
    I would also love some help if you don't mind
  9. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by STALKER0098)
    sure, whats the best way for u?
    probably PM on here, or MSN?
  10. alice.egh's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by STALKER0098)
    I know how to structure them, I think I might be able to help u if u want! we practiced these in class.
    could i possibly have some help too please?
  11. alice.egh's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    what did people get for the length of the contracted sarcomere?
  12. STALKER0098's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by alice.egh)
    what did people get for the length of the contracted sarcomere?
    I got 2 um, I might be wrong , but Using my ruler the scale (which was 1um) was 1.6 cm. each sarcomere was 4.8 cm, so 4.8/1.6 = 3 um,
    after contraction the size is 2/3 of the original so 2/3 * 3= 2 um, again this is how i did it. so dont trust me .
  13. alice.egh's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by STALKER0098)
    I got 2 um, I might be wrong , but Using my ruler the scale (which was 1um) was 1.6 cm. each sarcomere was 4.8 cm, so 4.8/1.6 = 3 um,
    after contraction the size is 2/3 of the original so 2/3 * 3= 2 um, again this is how i did it. so dont trust me .
    me tooo! ah thats good
  14. STALKER0098's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by alice.egh)
    me tooo! ah thats good
    haha awesome .
  15. alice.egh's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by STALKER0098)
    haha awesome .
    could you please help me with the structure for essays please?
  16. STALKER0098's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    Apologies to everyone, basically I was gonna ask one of my friends who went to uni, cuz he did bio last year, but he only said answer the question. SORRY! i thought he has a strategy that i can tell, but false promise....
  17. jojo7866's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    is anyone going to do a unofficial mark scheme?????
  18. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
    • Location: Manchester
    • Posts: 3,753
    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by STALKER0098)
    I got 2 um, I might be wrong , but Using my ruler the scale (which was 1um) was 1.6 cm. each sarcomere was 4.8 cm, so 4.8/1.6 = 3 um,
    after contraction the size is 2/3 of the original so 2/3 * 3= 2 um, again this is how i did it. so dont trust me .
    I got this answer too

    cannot remeber but I got like:

    stays the same
    decrease
    decrease

    for the lengths of the 'bands' - contraction of musvle
  19. alice.egh's Avatar
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    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    i got decreases, decreases, stays the same. oh im probably wrong
    what did you get for the permability of ions into axon question, which order did you put the ions?
  20. Doctor.'s Avatar
    • Vengeful, Imperial Overlord of The Student Room
    • Location: Manchester
    • Posts: 3,753
    Re: AQA Human Biology unit 4 (HBIO4) - 15th June 2012
    (Original post by alice.egh)
    i got decreases, decreases, stays the same. oh im probably wrong
    what did you get for the permability of ions into axon question, which order did you put the ions?
    I could be wrong too! I hate It when they make it hard to understand like that lol.

    erm it had to be Sodium ions and then Potassium ions, I think.
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