The carbon dioxide is primary a product of
A: Krebs cycle
B: Glycolysis
C: Electron transport phosphorylation
D: Lactate fermentation
E: Fatty acid synthesis
A: Krebs cycle
B: Glycolysis
C: Electron transport phosphorylation
D: Lactate fermentation
E: Fatty acid synthesis
举一反三
- The primary buffer system that controls the pH of the blood is the __________ buffer system. A: carbon dioxide, carbonate B: carbonate, bicarbonate C: carbonic acid, carbon dioxide D: carbonate, carbonic acid E: carbonic acid, bicarbonate
- Under normal conditions, the rates of glycolysis and of the citric acid cycle are integrated so that only as much glucose is metabolized to pyruvate as is needed to supply the citric acid cycle with its fuel, the acetyl groups of acetyl-CoA. Pyruvate, lactate, and acetyl-CoA are normally maintained at steady-state concentrations.
- The acetyl CoA required for the synthesis of fatty acids is derive from ( ). A: fat mobilization B: β-oxidation of fatty acids C: degradation of amino acids D: glycolysis E: degradation of glucoses
- Carbon dioxide can cause acid rain.
- If fatty acid synthesis and β oxidation were to proceed simultaneously, the two processes would constitute a futile cycle, wasting energy. We noted earlier that β oxidation is blocked by malonyl-CoA, which inhibits carnitine acyltransferase I. Thus, during fatty acid synthesis, production of the first intermediate, malonyl-CoA, shuts down β oxidation at the level of a transport system in the inner mitochondrial membrane. This control mechanism illustrates another advantage of segregating synthetic and degradative pathways in different cellular compartments.