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OCR F211/F212 AS Biology Retake 2016 Watch

  • View Poll Results: How hard did you find F211?!
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    What did everyone get for the last question- labelling parts of the heart?
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    (Original post by GLL1998)
    I explained water will enter down water pot grad, from high to low via osmosis..

    then I talked about the adhesion/cohesion of water molecules as they are pulled up Xylem under pressure gradient, high to low under tension - jus the transpiration process
    It was confusing because moss cells don't have vascular tissue, so how was you supposed to talk about this without mentioning the xylem?
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    (Original post by elizabethRT)
    Can anyone remember what they got for the fill in the gap question? And for the heart auestion matching up the statements, did people get F A B E?
    Left ventricle
    Ventricular Septum
    Cardiac muscle for the KLM one. Sorry
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    how does stem cells differ from specialized cells? I have put you can find stem cells in cambium but not specialized cells?
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    (Original post by tayoo)
    Left ventricle
    Ventricular Septum
    Cardiac muscle for the KLM one. Sorry
    I put atrium, septum, ventricular wall
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    (Original post by MotorboatMyGoat)
    It was confusing because moss cells don't have vascular tissue, so how was you supposed to talk about this without mentioning the xylem?
    exactly haha I f***** that up

    I wonder if ill pick up marks for discussing osmosis
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    Correct answers:

    Cell Wall
    Plasmodesmata
    Endodermis
    Casparian strip
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    (Original post by MotorboatMyGoat)
    I put atrium, septum, ventricular wall
    I put Atria, Septum and Apex
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    (Original post by Bellbird)
    how does stem cells differ from specialized cells? I have put you can find stem cells in cambium but not specialized cells?
    Not sure what the answer is but I put stem cells are capable of mitosis
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    What did everyone get for the length of the thing on the insert? Was it 10 mm?
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    (Original post by Bgxx)
    What do you think grade boundaries will be?
    Higher than usual imo. Only people re sitting did it and a fairly easy paper, they will surely be higher
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    (Original post by benjithestrange)
    I put Atria, Septum and Apex
    Argh I crossed apex out. Did you draw a vertical line or horizontal?
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    (Original post by Hkggy)
    What did everyone get for the length of the thing on the insert? Was it 10 mm?
    Pretty sure it was 14mm
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    What did people put about how tall the moss could grow?
    I think I put it cannot grow very tall or the stem would snap as it was thin, just talked utter crap
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    (Original post by MotorboatMyGoat)
    Argh I crossed apex out. Did you draw a vertical line or horizontal?
    Vertical, but I had no idea, so don't take my word for it! Did everyone out exocytosis for water leaving amoeba?
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    (Original post by GLL1998)
    I explained water will enter down water pot grad, from high to low via osmosis..

    then I talked about the adhesion/cohesion of water molecules as they are pulled up Xylem under pressure gradient, high to low under tension - jus the transpiration process
    There's no vacuolar tissue and therefore no xylem and so there isn't a transpiration stream. I just talked about apoplast, symplast and vacuolar pathways, talking about plasmodesmata and how water does via osmosis from a high water potential to a low water potential.
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    (Original post by GLL1998)
    What did people put about how tall the moss could grow?
    I think I put it cannot grow very tall or the stem would snap as it was thin, just talked utter crap
    It can only grow relatively small because growing too large would lower the surface area to volume ratio so simple diffusion/osmosis won't be sufficient.

    It has to stay small because it doesn't have xylem/phloem to transport substances
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    (Original post by benjithestrange)
    Vertical, but I had no idea, so don't take my word for it! Did everyone out exocytosis for water leaving amoeba?
    I put horizontal kind of at an angle but that baffled me
    Just because there wasn't a valve connecting the two chambers so I thought they had to be either side of the septum.

    I put exocytosis to yes! First of all saw water moving and instinctively put osmosis but then read the question properly and changed it. Phew!
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    (Original post by AlexH123)
    Pretty sure it was 14mm
    I got 14mm too
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    Can anyone tell me what the hell a dicotyledonous plant is? and also; What having no vascular tissue can do to the growth of moss?
    that exam was terrible, more so than last year and that's saying something.
    I failed again
 
 
 
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