Qpack Bio V2 #25

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laczlacylaci

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As for D: Lactic Acid accumulation. This means there is an insufficient amount of NADH to let lactate DH run to make lactate. Or insufficient glycolysis, resulting in accumulation of glucose and NAD+. Is there a relationship with that and the question?

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The andrenergic response mimics the sympathetic nervous system, increasing blood flow and glucose concentration. Additionally, the sympathetic response includes relaxation of the bronchial smooth muscle allowing for increased air flow. There is no reason to assume that this would lead to lactic acid increase, since there is enough oxygen to undergo aerobic respiration. Increased concentrations of lactic acid occurs during anaerobic conditions when there is not enough oxygen so another molecule (pyruvate) must act as an electron acceptor to regenerate NAD+. Also, note that lactic acid and lactate are the same molecule, just that lactate is deprotonated (its like saying carboxylic acid vs. carboxylate). I would recommend sticking to the passage information provided so that you can justify your answer otherwise you'll end up overthinking it. Hope this helps!
 
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