Metabolic reactions

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Questions and Answers

Which one of the following is an example of an anabolic pathway?

  • Lipolysis
  • Glycolysis
  • Fatty acid synthesis (correct)
  • Glycogenolysis

Which one of the following is an example of a catabolic pathway?

  • Pentose phosphate shunt
  • Ketogenesis
  • Glycolysis (correct)
  • Gluconeogenesis

What is the purpose of the citric acid cycle?

  • To produce ATP through oxidative phosphorylation (correct)
  • To convert pyruvate into acetyl-CoA
  • To synthesize glucose from non-carbohydrate precursors
  • To breakdown glucose into pyruvate

Which process involves the breakdown of glycogen in the cytosol to produce glucose?

<p>Glycogenolysis (D)</p> Signup and view all the answers

What is the energy input required for glycogenesis?

<p>ATP (C)</p> Signup and view all the answers

What process involves the breakdown of fatty acids into acetyl CoA for energy production?

<p>Beta oxidation (A)</p> Signup and view all the answers

What is one reason why triglycerides (TGs) can store more energy compared to glycogen?

<p>TGs have more carbon atoms (B)</p> Signup and view all the answers

Which of the following is a catabolic pathway that can feed into the citric acid cycle (CAC) to produce more energy?

<p>Fatty acid oxidation (A)</p> Signup and view all the answers

What is the main function of the electron transport chain (ETC) in cellular respiration?

<p>To produce ATP (B)</p> Signup and view all the answers

Where does the electron transport chain (ETC) take place in the mitochondria?

<p>Intermembrane space (B)</p> Signup and view all the answers

Which process occurs in the cytosol and involves the breakdown of glucose to produce energy in the form of ATP and NADH?

<p>Glycolysis (A)</p> Signup and view all the answers

What is the purpose of ketolysis/ketone body oxidation?

<p>To convert ketone bodies to acetyl CoA (C)</p> Signup and view all the answers

What is the main site of gluconeogenesis?

<p>Liver (A)</p> Signup and view all the answers

Under aerobic conditions, what is the fate of pyruvate?

<p>Conversion to acetyl CoA (A)</p> Signup and view all the answers

Which process involves the breakdown of fatty acids into acetyl CoA for energy production?

<p>Beta oxidation (C)</p> Signup and view all the answers

What type of energy is produced during the breakdown of fatty acids?

<p>ATP (D)</p> Signup and view all the answers

What are fats broken down into during the breakdown of fatty acids?

<p>Acetyl CoA (D)</p> Signup and view all the answers

How does lipolysis contribute to energy production?

<p>By releasing fatty acids for energy (D)</p> Signup and view all the answers

Based on their structures, why do triglycerides (TGs) take up less space compared to glycogen?

<p>TGs have longer chains (B)</p> Signup and view all the answers

What is the main function of ketolysis in energy production?

<p>To produce acetyl CoA (D)</p> Signup and view all the answers

What is one connection between excess glucose and fatty acid synthesis?

<p>Excess glucose is converted into fatty acids (D)</p> Signup and view all the answers

Which one of the following is an example of a direct cellular energy provider?

<p>Glycolysis (B)</p> Signup and view all the answers

Which one of the following is an example of an indirect cellular energy provider?

<p>Citric acid cycle (B)</p> Signup and view all the answers

Which one of the following anabolic pathways occurs in the liver and kidney?

<p>Glycogenesis (A)</p> Signup and view all the answers

Which one of the following catabolic pathways occurs in the cytosol?

<p>Glycogenolysis (A)</p> Signup and view all the answers

Which one of the following is the main purpose of glycolysis under anaerobic conditions?

<p>Production of ATP (D)</p> Signup and view all the answers

Which one of the following is NOT a part of the nucleotide structure of ATP?

<p>Thymine (A)</p> Signup and view all the answers

Which one of the following is the main site of ketogenesis?

<p>Liver (C)</p> Signup and view all the answers

Which of the following is an anabolic pathway that involves the synthesis of fatty acids from acetyl CoA?

<p>Ketogenesis (C)</p> Signup and view all the answers

Where does the pentose phosphate shunt (PPS) occur in the cell?

<p>Cytosol (A)</p> Signup and view all the answers

Which of the following is NOT a product of the citric acid cycle (CAC)?

<p>NADPH (B)</p> Signup and view all the answers

What is the purpose of the electron transport chain (ETC) in cellular respiration?

<p>To produce ATP (C)</p> Signup and view all the answers

Which of the following is a catabolic pathway that breaks down glycogen to release glucose?

<p>Glycolysis (C)</p> Signup and view all the answers

What is the main site of gluconeogenesis?

<p>Cytosol (C)</p> Signup and view all the answers

What is the purpose of ketolysis/ketone body oxidation?

<p>To produce ATP (A)</p> Signup and view all the answers

Which of the following is NOT a catabolic pathway that can feed into the citric acid cycle (CAC) to produce more energy?

<p>NADPH (B)</p> Signup and view all the answers

Which of the following is the correct order of the electron carriers in the electron transport chain (ETC)?

<p>I, II, III, IV (D)</p> Signup and view all the answers

Where does the citric acid cycle (CAC) take place in the cell?

<p>Mitochondria (C)</p> Signup and view all the answers

What is the final electron acceptor in the electron transport chain (ETC)?

<p>O2 (D)</p> Signup and view all the answers

What is the main function of ATP synthase in the electron transport chain (ETC)?

<p>To produce ATP (D)</p> Signup and view all the answers

Which of the following is NOT a product of the citric acid cycle (CAC)?

<p>Acetyl CoA (A)</p> Signup and view all the answers

Where does the breakdown of fatty acids into acetyl CoA for energy production occur?

<p>Mitochondria (C)</p> Signup and view all the answers

What is the purpose of ketolysis/ketone body oxidation?

<p>To produce ATP (B)</p> Signup and view all the answers

Which of the following is NOT a part of the electron transport chain (ETC)?

<p>Q (A)</p> Signup and view all the answers

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