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    Question A

    Did about:
    how inorganic ions cant be made by body so must be got from diet.
    phosphate in phospholipid bi-layer
    Na+ K+ in nervous transmission
    Ca+ in synapses
    Na+ in cotransport of molecules
    Fe2+ in haemoglobin
    CO2 producing acidic H+ leads to releae of more O2 and Haemoglobin as a buffer:
    CO2 + H2O --> H+ + HCO3- and HbO2 + H+ --> HbH+ + O2
    Hydrogen Phosophate ions as a buffer - homeostasis
    HP042- + H+ --> H2PO4-
    H+ in light dependent photosynethesis, photolysis NADP+ + H+ + 2e- --> NADPH etc.
    Phosphorus in ATP
    Sulphur - disulphide bonds
    Na+ in water regulation in kidneys, Related to conditions and diet.
    Pottassium for muscle contractions - hypokalemia - diet
    About chemiosynthesis in deep sea vent bacteria - hydrogen sulfide - ecosystem, food chain etc..

    Really enjoyed that actually.
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    Bah i realise now if id av thought bout it, the inorganic ions question was the bttr one, but i just went with the bacteria question sob! Didnt realise we cud include all the stuff bout kidneys etc, which im really clued up on thanx to module 6 rather than making up crap bout bacteria
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    I only really talked about mod 6. touched on photosynthesis and resp. Totally forgot about phopholipid bilayer and DNA arrgh.
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    What did people say about how percentages of protein etc. change when you starve someone? And what about teh formula?
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    I said it would decrease because theyd be used as respiratory substrate as less glucose was being digested. For the formula I got a= b x c divided by D, I subsitituted the letters for the mark-release-recapture formula (so glad I read it before i went into the exam lol)!!
 
 
 
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