Podcast
Questions and Answers
Which regulatory enzyme is inhibited by succinyl-CoA via feedback inhibition?
Which regulatory enzyme is inhibited by succinyl-CoA via feedback inhibition?
- Citrate synthase (correct)
- α-ketoglutarate dehydrogenase
- Pyruvate dehydrogenase
- Isocitrate dehydrogenase
What effect does high levels of ATP have on the Pyruvate Dehydrogenase Complex?
What effect does high levels of ATP have on the Pyruvate Dehydrogenase Complex?
- It converts acetyl-CoA to pyruvate
- It phosphorylates E1 and inactivates the enzyme complex (correct)
- It activates the enzyme complex
- It promotes substrate channeling
Which molecule activates most of the regulated enzymes in the Citric Acid Cycle?
Which molecule activates most of the regulated enzymes in the Citric Acid Cycle?
- ATP
- Succinyl-CoA
- ADP (correct)
- Acetyl-CoA
What is the purpose of the Glyoxylate Cycle in plants and microorganisms?
What is the purpose of the Glyoxylate Cycle in plants and microorganisms?
In fatty acid catabolism, what happens when H+ is added to the carbanion intermediate formed by treating fumarate with OH-?
In fatty acid catabolism, what happens when H+ is added to the carbanion intermediate formed by treating fumarate with OH-?
Which enzyme catalyzes the oxidation of L-malate to oxaloacetate?
Which enzyme catalyzes the oxidation of L-malate to oxaloacetate?
How is the Pyruvate Dehydrogenase Complex regulated when ATP levels are low?
How is the Pyruvate Dehydrogenase Complex regulated when ATP levels are low?
What is the key product generated when L-malate is oxidized to oxaloacetate?
What is the key product generated when L-malate is oxidized to oxaloacetate?
Which molecule carries CO2 between enzyme active sites in the citric acid cycle?
Which molecule carries CO2 between enzyme active sites in the citric acid cycle?
How do activated bicarbonate and biotin interact during the citric acid cycle?
How do activated bicarbonate and biotin interact during the citric acid cycle?
What is the primary purpose of the Glyoxylate Cycle in terms of energy production?
What is the primary purpose of the Glyoxylate Cycle in terms of energy production?
Which enzyme bypasses decarboxylation reactions in the citric acid cycle during the Glyoxylate Cycle?
Which enzyme bypasses decarboxylation reactions in the citric acid cycle during the Glyoxylate Cycle?
What is the fate of acetyl-CoA in animals, according to the text?
What is the fate of acetyl-CoA in animals, according to the text?
Which of the following is NOT a function of fatty acids in energy storage, as mentioned in the text?
Which of the following is NOT a function of fatty acids in energy storage, as mentioned in the text?
What triggers the mobilization of stored triacylglycerols from adipocytes?
What triggers the mobilization of stored triacylglycerols from adipocytes?
Which molecule is used as a molecular carrier of fatty acids into the mitochondrial matrix?
Which molecule is used as a molecular carrier of fatty acids into the mitochondrial matrix?
What is the role of thiolase in fatty acid oxidation?
What is the role of thiolase in fatty acid oxidation?
In fatty acid oxidation, what is the function of enoyl-CoA hydratase?
In fatty acid oxidation, what is the function of enoyl-CoA hydratase?
What is the primary role of Acyl-CoA dehydrogenase in fatty acid catabolism?
What is the primary role of Acyl-CoA dehydrogenase in fatty acid catabolism?
What is the stereospecificity observed during hydration in the fatty acid catabolic pathway?
What is the stereospecificity observed during hydration in the fatty acid catabolic pathway?
What is the primary role of Coenzyme A-SH (CoA-SH) in fatty acid catabolism?
What is the primary role of Coenzyme A-SH (CoA-SH) in fatty acid catabolism?
Which intermediate is formed from odd-numbered fatty acids during β-oxidation?
Which intermediate is formed from odd-numbered fatty acids during β-oxidation?
What is the fate of acetyl-CoA produced from fatty acid oxidation?
What is the fate of acetyl-CoA produced from fatty acid oxidation?
Which enzyme is involved in the conversion of propionyl-CoA to succinyl-CoA?
Which enzyme is involved in the conversion of propionyl-CoA to succinyl-CoA?
What additional steps are required for the oxidation of unsaturated fatty acids?
What additional steps are required for the oxidation of unsaturated fatty acids?
Which process occurs when oxaloacetate is depleted during prolonged fasting or diabetes?
Which process occurs when oxaloacetate is depleted during prolonged fasting or diabetes?
In the electron transport chain, which molecule transports electrons from Complexes I and II to Complex III?
In the electron transport chain, which molecule transports electrons from Complexes I and II to Complex III?
What is the function of Cytochromes in the electron transport chain?
What is the function of Cytochromes in the electron transport chain?
Which amino acid catabolism product can be converted into glucose or glycogen?
Which amino acid catabolism product can be converted into glucose or glycogen?
What is the role of Iron-sulfur clusters in the electron transport chain?
What is the role of Iron-sulfur clusters in the electron transport chain?
