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In metabolic pathways biological oxidation of substrates usually takes place by _____ Watch

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    1.Transfer of pairs of hydrogen atoms from substrates to NAD+ or FAD.
    2.Transfer of pairs of hydrogen atoms from NAD+ or FAD to the substrates.
    3.Reaction of substrates with oxygen.
    4.Transfer of pairs of hydrogen atoms from substrates to ATP.

    Really struggling to answer this question in my online test

    Please help..

    Thanks xx
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    Have a look at the Bios Instant Notes Biochemistry chapter on TCA/oxidative phosphorylation.
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    (Original post by EmzToch)
    1.Transfer of pairs of hydrogen atoms from substrates to NAD+ or FAD.
    2.Transfer of pairs of hydrogen atoms from NAD+ or FAD to the substrates.
    3.Reaction of substrates with oxygen.
    4.Transfer of pairs of hydrogen atoms from substrates to ATP.

    Really struggling to answer this question in my online test

    Please help..

    Thanks xx
    I think its one. Reduction usually involves a gain of hydrogen so. If the nad gain hydrogen then they are reduced so the substrates must be oxidised.

    I'm not 100 percent though. More like abit under 90 percent.
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    (Original post by EmzToch)
    1.Transfer of pairs of hydrogen atoms from substrates to NAD+ or FAD.
    2.Transfer of pairs of hydrogen atoms from NAD+ or FAD to the substrates.
    3.Reaction of substrates with oxygen.
    4.Transfer of pairs of hydrogen atoms from substrates to ATP.

    Really struggling to answer this question in my online test

    Please help..

    Thanks xx
    Google is your friend:
    http://www.textbookofbacteriology.ne.../fermmodel.jpg
 
 
 
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