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Confusion on Biology A Level Paper markschemes! watch

    • Thread Starter

    Hi, this may sound like a stupid question, but I am technically studying biology without a teacher who's had full experience on AS level and A Level (I'm doing CIE if that helps, anyways i noticed Biology seems to have a lot of their answers numbered, does this mean I have to follow in that specific order to gain marks? If i skip one do i loose the rest that i mentioned in that order ahead of it? Or is this just to make marking easier for examiners? Thanks


    1 nitrogen and hydrogen/ substrates, bind to/AW, active site ;
    2 enzyme-substrate complex (forms) ;

    3 ref. lock and key / induced fit, mechanism ;

    4 activation energy of reaction is lowered ;

    5 example of how activation energy lowered ;

    6 product/NH4
    +leaves active site ;

    7 ATP, required/ used/provided from respiration ;

    8 ref. anaerobic conditions for enzyme action ;

    The points refer to the number of possible answers to be included in your answer. For example, if the question is for 3 marks, it is best to have 3+ points mentioned in the marking scheme in your answer. Try to include as many points as you can, so you can secure all the marks allotted for the question. : )

    And no there is no specific order to be followed while writing the points, unless the question asks you, like "Describe the cardiac cycle", where the specific sequence of events occurring is required.

    All the best. : )

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