MCAT Question of the Day
    •

    Q:

    		 Which of the following correctly describes a situation when cells switch from respiration to fermentation?
    		 

    A

    		 When pyruvate is no longer available

    B

    		 When electron acceptors are no longer available

    C

    		 When NADH and FADH2 are in low quantity

    D

    		 When the proton-motive force is decreasing



    Glycolysis, Gluconeogenesis, PPP | Oxidative Phosphorylation |
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