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OCR F211/F212 AS Biology Retake 2016 Watch

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    (Original post by A.Ka)
    Stem cells are able to specialise into many types of cells where as specialised cells can only divide into genetically identical copies of them selves.
    I'm afraid in the question it talked about specialisation by biology teacher said to talk about differentiation
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    (Original post by Zordon)
    Anyone else get 15mm?
    Yep - giving 125 micrometres
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    (Original post by astrostar29)
    1 or two people in my school said it did but the majority of us said i didnt say inside

    It said one function of the membrane is to separate in the inside of the cell from the outside
    Name two other function of the cell membrane on an Amoeba

    I could be wrong though...
    Pretty sure it was inside cells it was asking about
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    (Original post by Hdb)
    Cheers bro, thought it was a good paper... Last question took me a while but got it in the end I think....
    Did you get DABE for the heart question?
    I got BADE :/
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    45 for an A?
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    (Original post by Lannew1)
    For the other than mitosis question:
    I put:
    Checking DNA for errors
    Making ribosome (cell growth etc)
    Making ATP
    And Apoptosis? Ive seen it previously as a marking piont?
    I summed up interphase and cytokinesis
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    (Original post by Bailey2j09)
    I'm afraid in the question it talked about specialisation by biology teacher said to talk about differentiation
    undifferentiated cells specialize into specialized cells. Stem cells are undifferentiated buddy.
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    (Original post by astrostar29)
    Yep - giving 125 micrometres
    Yep
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    (Original post by astrostar29)
    Well if you are adamant that you are correct why ask!
    The bursting of an animals cell due to water uptake is just known as cell lysis

    Haemolysis is the rupturing of a blood cell or an Erythrocyte meaning Haemoglobin is liberated into the surround fluid.
    Hence why there is HAEM in the word

    Google it if you are unsure...
    Dont get cheeky fam. On every paper I've seen they accept haemolysed, so do one you got it?
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    (Original post by A.Ka)
    undifferentiated cells specialize into specialized cells. Stem cells are undifferentiated buddy.
    Yes- but then they differentiate - one person talked about specialisation for the question but in the question it said other than specialisation
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    (Original post by claytonb)
    anyone else put:
    right ventricle
    septum
    left ventricle
    for KLM ???
    that's what I put!! but I'm so unsure because I didn't know whether it was vertical or horizontal
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    (Original post by elizabethRT)
    that's what I put!! but I'm so unsure because I didn't know whether it was vertical or horizontal
    it was horizontal as it was transverse. should be right ventricle, purkyne fibre and cardiac muscle or something like that
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    (Original post by A.Ka)
    it was horizontal as it was transverse. should be right ventricle, purkyne fibre and cardiac muscle or something like that
    yeah i had right ventricle, septum and left ventricular wall
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    First q ameoba has large Sa:V ratio.
    Diffusion alone is sufficient
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    (Original post by Zordon)
    45 for an A?
    That would be quite high if say 42
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    I put anaphase for the stage of mitosis. Anyone else?
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    For moss plant i wrote about root pressure ,forces of cohesion, adhesion, water potential and mass flow
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    me
    (Original post by maryam897)
    I put anaphase for the stage of mitosis. Anyone else?
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    (Original post by maryam897)
    I put anaphase for the stage of mitosis. Anyone else?
    Meee

    Posted from TSR Mobile
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    I hope it is 42 for an A
 
 
 
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