Glycolysis Which of the following could act as an uncoupler of electron transport and ATP synthesis? neither (a) nor (b) The Fo base-piece of ATP synthase (without the Fl subunit) Both (a) and (b) Dinitrophenol neither (a) nor (b) The Fo base-piece of ATP synthase (without the Fl subunit) Both (a) and (b) Dinitrophenol ANSWER DOWNLOAD EXAMIANS APP
Glycolysis Which of the following is not true of glycolysis? ADP is phosphorylated to ATP via substrate level phosphorylation The pathway requires two moles of ATP to get started catabo-lizing each mole of glucose The pathway oxidizes two moles of NADH to NAD+ for each mole of glucose that enters The pathway does not require oxygen ADP is phosphorylated to ATP via substrate level phosphorylation The pathway requires two moles of ATP to get started catabo-lizing each mole of glucose The pathway oxidizes two moles of NADH to NAD+ for each mole of glucose that enters The pathway does not require oxygen ANSWER DOWNLOAD EXAMIANS APP
Glycolysis Why does the glycolytic pathway continue in the direction of glucose catabolism? There are essentially three irreversible reactions that act as the driving force for the pathway The enzymes of glycolysis only function in one direction Glycolysis occurs in either direction High levels of ATP keep the pathway going in a forward direction There are essentially three irreversible reactions that act as the driving force for the pathway The enzymes of glycolysis only function in one direction Glycolysis occurs in either direction High levels of ATP keep the pathway going in a forward direction ANSWER DOWNLOAD EXAMIANS APP
Glycolysis Fructose-2,6-bisphosphate both (b) and (c) activates phosphofructokinase activates fructose-1,6-bisphosphatase inhibits fructose-1,6-bisphosphatase both (b) and (c) activates phosphofructokinase activates fructose-1,6-bisphosphatase inhibits fructose-1,6-bisphosphatase ANSWER DOWNLOAD EXAMIANS APP
Glycolysis Which of the following is not a mechanism for altering the flux of metabolites through the rate-determining step of a pathway? Diffusional coupling between adjacent active sites Genetic control of the enzyme concentration Allosteric control of the enzyme activity Covalent modification of the enzyme Diffusional coupling between adjacent active sites Genetic control of the enzyme concentration Allosteric control of the enzyme activity Covalent modification of the enzyme ANSWER DOWNLOAD EXAMIANS APP
Glycolysis Phosphofructokinase, the major flux-controlling enzyme of glycolysis is allosterically inhibited and activated respectively by Citrate and ATP AMP and Pi ATP and PEP ATP and ADP Citrate and ATP AMP and Pi ATP and PEP ATP and ADP ANSWER DOWNLOAD EXAMIANS APP
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