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A:
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- How do alcohol and lactic acid fermentation differ other than their final product? (Hint: Look closely at the reduction reactions taking place in each pathway)Why is pyruvate not oxidized to-3 CO2 and H2O under anaerobic * .?conditions إجابتكIn anaerobic conditions (very low O2), glycolysis must be accompanied by fermentation. Why? ас
- Which of the following enzymes below is/are involved in the control of Krebs' cycle? citrate synthetase aconitase Fumarase isocitrate dehydrogenaseWhich among the following catalyse dehydration step in the TCA cycle Isocitrate dehydrogenase Enolase Fumarase Succinyl thiokinaseWhy is the lactic acid test done when sepsis is suspected? Explain why the body produces excess lactic acid during sepsis (Be sure to cover all possibilities). How does this relate to fermentation and final electron acceptors during metabolism?
- Pyruvate generated by glycolysis under anaerobic conditions is converted tolactate or ethanol. It may seem this is a waste of energy, but it is in factcritical to survival for cells exposed to oxygen limiting conditions. Explain whythis is true.Which of the following statements is TRUE about cholesterol biosynthesis? O NADPH is needed to form mevalonate. O Cholesterol is composed of 30 carbon atoms. HMG-CoA lyase catalyzes the committed step. Five molecules of isopentyl pyrophosphate condense to form squalene.Which of the following statements is TRUE about cholesterol biosynthesis? O NADH is needed to form mevalonate. O HMG-CoA lyase catalyzes the committed step. Six molecules of isopentyl pyrophosphate condense to form squalene. O Cholesterol is composed of 30 carbon atoms.
- Butanediol production leads to greater ethanol production thanin the mixed-acid fermentation of Escherichia coli. Why?Which of the following enzymes consumes one molecule of NADH, during anaerobic fermentation in yeast, as it converts a two-carbon substrate molecule into a two-carbon product molecule? succinate dehydrogenase pyruvate decarboxylase C. isocitrate dehydrogenase lactate dehydrogenase alcohol dehydrogenaseWhich of the following cofactors is required for the conversion of succinate to fumarate in the citr acid cycle? O ATP O Biotin OFAD O NAD+ O NADP+2