Podcast
Questions and Answers
What is the primary purpose of gluconeogenesis?
What is the primary purpose of gluconeogenesis?
- To convert pyruvate into glucose (correct)
- To produce ATP
- To generate NADPH
- To break down glucose for energy
Which enzyme catalyzes the phosphorylation of glucose to glucose-6-phosphate in glycolysis?
Which enzyme catalyzes the phosphorylation of glucose to glucose-6-phosphate in glycolysis?
- Hexokinase (correct)
- Pyruvate kinase
- Phosphofructokinase
- Glyceraldehyde-3-phosphate dehydrogenase
What is the nature of reactions with a large negative ΔG in metabolic pathways?
What is the nature of reactions with a large negative ΔG in metabolic pathways?
- They are reversible.
- They are independent of substrate concentration.
- They are irreversible. (correct)
- They require ATP.
Which compound can serve as a starting material for gluconeogenesis?
Which compound can serve as a starting material for gluconeogenesis?
What is the role of NADPH in the pentose phosphate pathway (PPP)?
What is the role of NADPH in the pentose phosphate pathway (PPP)?
What are the two main stages of the pentose phosphate pathway?
What are the two main stages of the pentose phosphate pathway?
Which enzyme catalyzes the conversion of glucose-6-phosphate to ribulose-5-phosphate?
Which enzyme catalyzes the conversion of glucose-6-phosphate to ribulose-5-phosphate?
In the oxidative phase of the PPP, how many NADPH molecules are produced from one molecule of glucose-6-phosphate?
In the oxidative phase of the PPP, how many NADPH molecules are produced from one molecule of glucose-6-phosphate?
Which enzyme catalyzes the conversion of glucose-6-phosphate to ribulose-5-phosphate?
Which enzyme catalyzes the conversion of glucose-6-phosphate to ribulose-5-phosphate?
What is the outcome of the non-oxidative phase of the PPP?
What is the outcome of the non-oxidative phase of the PPP?
What is the main regulatory step in the pentose phosphate pathway?
What is the main regulatory step in the pentose phosphate pathway?
What is the primary function of ribose-5-phosphate produced in the PPP?
What is the primary function of ribose-5-phosphate produced in the PPP?
In which mode of the PPP is ribose-5-phosphate maximized?
In which mode of the PPP is ribose-5-phosphate maximized?
Which pathway produces ribose-5-phosphate needed for nucleotide synthesis?
Which pathway produces ribose-5-phosphate needed for nucleotide synthesis?
What condition leads to the activation of glycolytic intermediates in the PPP?
What condition leads to the activation of glycolytic intermediates in the PPP?
Favism is associated with a deficiency in which enzyme?
Favism is associated with a deficiency in which enzyme?
What is a consequence of glucose-6-phosphate dehydrogenase deficiency?
What is a consequence of glucose-6-phosphate dehydrogenase deficiency?
Which compound is NOT a substrate for gluconeogenesis?
Which compound is NOT a substrate for gluconeogenesis?
What is the net reaction for the oxidative phase of the PPP?
What is the net reaction for the oxidative phase of the PPP?
What is the role of NADP+ in the oxidative phase of the PPP?
What is the role of NADP+ in the oxidative phase of the PPP?
In which cellular location does gluconeogenesis primarily occur?
In which cellular location does gluconeogenesis primarily occur?
Which of the following best describes a futile cycle?
Which of the following best describes a futile cycle?
What is the end product of the oxidative phase of the PPP?
What is the end product of the oxidative phase of the PPP?
What is the significance of the cyclic mode of the PPP?
What is the significance of the cyclic mode of the PPP?
In which scenario would a cell primarily utilize Mode 3 of the PPP?
In which scenario would a cell primarily utilize Mode 3 of the PPP?
Which of the following is an example of an anaplerotic reaction?
Which of the following is an example of an anaplerotic reaction?
What is the main energy cost associated with gluconeogenesis?
What is the main energy cost associated with gluconeogenesis?
Which of the following processes is directly inhibited by malonate?
Which of the following processes is directly inhibited by malonate?
What happens to the levels of NADPH during oxidative stress?
What happens to the levels of NADPH during oxidative stress?
What is the primary function of the non-oxidative phase of the PPP?
What is the primary function of the non-oxidative phase of the PPP?
Flashcards
Capital of France (example flashcard)
Capital of France (example flashcard)
Paris
