Podcast
Questions and Answers
What do catabolic pathways primarily funnel into cellular respiration?
What do catabolic pathways primarily funnel into cellular respiration?
- Electrons from various organic molecules (correct)
- Proteins
- Amino acids
- Fatty acids
What is a consequence of elevated ADP levels in energy-consuming processes?
What is a consequence of elevated ADP levels in energy-consuming processes?
- Increase in ATP production to match consumption (correct)
- Accumulation of NADH and FADH2
- Inhibition of glycolysis
- Decrease in ATP production
How are fatty acids processed to contribute to energy production?
How are fatty acids processed to contribute to energy production?
- Converted directly into amino acids
- Directly converted into ATP
- Digested and used as glucose
- Broken down by beta oxidation to yield acetyl CoA (correct)
What happens when ADP and phosphate levels are low?
What happens when ADP and phosphate levels are low?
What is the primary purpose of glycolysis in metabolism?
What is the primary purpose of glycolysis in metabolism?
What effect does low oxygen levels have on the electron transport process?
What effect does low oxygen levels have on the electron transport process?
Which enzyme is allosterically inhibited by NADH during the citric acid cycle?
Which enzyme is allosterically inhibited by NADH during the citric acid cycle?
What is the result of acetyl-CoA accumulation on the pyruvate dehydrogenase enzyme?
What is the result of acetyl-CoA accumulation on the pyruvate dehydrogenase enzyme?
How does the availability of substrates affect the citric acid cycle?
How does the availability of substrates affect the citric acid cycle?
Which factor primarily influences the regulation of the citric acid cycle?
Which factor primarily influences the regulation of the citric acid cycle?
What inhibits Citrate Synthase?
What inhibits Citrate Synthase?
What is produced alongside α-ketoglutarate in the oxidation of Isocitrate?
What is produced alongside α-ketoglutarate in the oxidation of Isocitrate?
Which enzyme is involved in the conversion of acetyl-CoA and oxaloacetate to citrate?
Which enzyme is involved in the conversion of acetyl-CoA and oxaloacetate to citrate?
Which step of the cycle is one of the rate-limiting steps?
Which step of the cycle is one of the rate-limiting steps?
Which of the following is a product of the cleavage of Succinyl-CoA?
Which of the following is a product of the cleavage of Succinyl-CoA?
What activates Isocitrate Dehydrogenase?
What activates Isocitrate Dehydrogenase?
What is the primary purpose of the citric acid cycle?
What is the primary purpose of the citric acid cycle?
What is the result of the oxidative decarboxylation of α-ketoglutarate?
What is the result of the oxidative decarboxylation of α-ketoglutarate?
What is produced in one turn of the citric acid cycle?
What is produced in one turn of the citric acid cycle?
Which compound limits the activity of Isocitrate Dehydrogenase under high energy conditions?
Which compound limits the activity of Isocitrate Dehydrogenase under high energy conditions?
Where does the citric acid cycle occur within the cell?
Where does the citric acid cycle occur within the cell?
What must occur before the citric acid cycle can begin?
What must occur before the citric acid cycle can begin?
Which enzyme complex converts pyruvate to Acetyl-CoA?
Which enzyme complex converts pyruvate to Acetyl-CoA?
What is a significant characteristic of the reaction converting pyruvate to Acetyl-CoA?
What is a significant characteristic of the reaction converting pyruvate to Acetyl-CoA?
What happens to Acetyl-CoA once it accumulates in the cell?
What happens to Acetyl-CoA once it accumulates in the cell?
How does gluconeogenesis relate to Acetyl-CoA?
How does gluconeogenesis relate to Acetyl-CoA?
What is succinyl-CoA formed from?
What is succinyl-CoA formed from?
What is produced when succinate is oxidized?
What is produced when succinate is oxidized?
Which enzyme catalyzes the conversion of fumarate to L-Malate?
Which enzyme catalyzes the conversion of fumarate to L-Malate?
What does the oxidation of one NADH by the electron transport chain yield?
What does the oxidation of one NADH by the electron transport chain yield?
Which component is directly involved in the regeneration of GTP from GDP and Pi?
Which component is directly involved in the regeneration of GTP from GDP and Pi?
What is the prime control of the citric acid cycle?
What is the prime control of the citric acid cycle?
How many pairs of electrons are transferred during one turn of the citric acid cycle?
How many pairs of electrons are transferred during one turn of the citric acid cycle?
What role does the electron transport chain play in relation to the citric acid cycle?
What role does the electron transport chain play in relation to the citric acid cycle?
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