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Edexcel IGCSE Human Biology May 2017 Watch

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    (Original post by zombie_gang24)
    i wrote that there was a mutation and some bases were deleted, but i am not sure about it.
    This is correct.

    (Original post by Amandipeiris)
    I got 5.9% . Oh god this is bad 😖😖😖😖
    Many students including me got this.

    (Original post by Alexis_sanchez)
    in the lung cancer question you should write " tar"
    the fetus question u should label the amniotic fluid
    the prevention of conjunctivitis i wrote wear glasses and introduce vaccinations programmes
    Im not asking about what causes lung cancer. There was this question like how shud scientist make it reliable and valid. And i think its the placenta and not the amnion.
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    Thoughts on paper 1?
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    I said take 1000 males smokers same age 1000 males non smokers same age
    record how many have lung cancer
    repeat experiment calculate average
    (Original post by Sinister6807)
    This is correct.



    Many students including me got this.



    Im not asking about what causes lung cancer. There was this question like how shud scientist make it reliable and valid. And i think its the placenta and not the amnion.
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    What's everyone revising today ? Xx
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    Gonna do past papers from the last 5 years, look up answers in mark schemes and get my mistakes.
    Besides that, gonna concentrate on common 5-8 mark questions and stuff related to the environment like sewage treatment
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    (Original post by Amandipeiris)
    I wrote that there is a error in the sequence. What did you write?
    I wrote about mutations - a random change in genetic material/DNA
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    I wrote He should obtain the number of lung cancer patients who smoke and the number of non smoker lung cancer patients and then compare the result
    Is it alright ?
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    I wrote He should obtain the number of lung cancer patients who smoke and the number of non smoker lung cancer patients and then compare the resultIs it alright????
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    it is limewater right?~! thats what i put
    (Original post by Greenapplepear)
    yeah, like the indicator question did u put lime water ???/
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    0 Rep: I wrote He should obtain the number of lung cancer patients who smoke and the number of non smoker lung cancer patients and then compare the result Is it alright ?
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    i did the same but just added and repeat for reliability
    (Original post by Rafiur Alam)
    I wrote He should obtain the number of lung cancer patients who smoke and the number of non smoker lung cancer patients and then compare the resultIs it alright????
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    im thinking: diseases (8markers) skin, kidneys, digestion and a corms
    (Original post by Ellytur)
    Are we able to predict what might come up in Friday's exam after that? I really need to do well in that one now but I'm not hopeful x
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    it was a 40% increase i cant remeber it involved 5 cant remeber 5-10 or 0-5
    placenta
    tar
    industrialization/ burning of fossil fuels
    no eye to eye contact/ dont share towels/ wash hands after touching
    (Original post by Sinister6807)
    guys what did u write for 2 values of age when growth is highest?
    and what did u guys label in the fetus?
    what did u write for the lung cancer and smoking question?
    what did you write for the reason for the difference in sulfur emissions?
    what did u write for methods to prevent transmission of conjunctivitis?
    plz help
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    (Original post by Amandipeiris)
    I got 5.9% . Oh god this is bad 😖😖😖😖
    how did you get 5.6?
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    (Original post by foxylemons)
    it was a 40% increase i cant remeber it involved 5 cant remeber 5-10 or 0-5
    placenta
    tar
    industrialization/ burning of fossil fuels
    no eye to eye contact/ dont share towels/ wash hands after touching
    Yup it was 0-5. And i wrote exact same answers
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    Guys for lung cancer and smoking i put 4 groups since 3 marks
    Number of people who smoke with lung cancer
    Smokers without cancer
    Non smokers with cancer
    And non smokers without cancer.
    Is this wrong?
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    that's right you got a control; i dont know if for third mark you might have to say repeat?
    (Original post by Sinister6807)
    Guys for lung cancer and smoking i put 4 groups since 3 marks
    Number of people who smoke with lung cancer
    Smokers without cancer
    Non smokers with cancer
    And non smokers without cancer.
    Is this wrong?
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    (Original post by foxylemons)
    how did you get 5.6?
    5.9, 118k/2M * 100


    I expect questions on cell division(mitosis and meiosis), diseases and most likely pit latrines, sewage treatment etc
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    (Original post by foxylemons)
    that's right you got a control; i dont know if for third mark you might have to say repeat?
    I'm assuming the third mark would be by mentioning compare the results or something of that nature
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    (Original post by foxylemons)
    how did you get 5.6?
    118000/2×10^6 ×100
 
 
 
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