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  1. ramnarace

    A level Biology: Post your doubts here!

    When electrons are moved along an electron transport chain,energy is lost, this energy is used to transport the H+ ion into the intermembrane space.
  2. ramnarace

    A level Biology: Post your doubts here!

    Does anyone have tips for paper 5 biology?
  3. ramnarace

    Thank you for posting the chem paper 5 tips, they were very helpful :) do you by any chance have...

    Thank you for posting the chem paper 5 tips, they were very helpful :) do you by any chance have tips for biology paper 5?
  4. ramnarace

    Chemistry: Post your doubts here!

    Can someone please do the graph 2(b) from may/june 2009 paper 5. Im not too certain on how to extrapolate the 2 lines. Thank you very much
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