3-L1

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Questions and Answers

What is another name for the shunt pathway according to the text?

  • Pentose monophosphate pathway (correct)
  • EM pathway
  • Ribulose pathway
  • Glycolytic pathway

Where does the HMP shunt pathway occur within the cell?

  • Mitochondria
  • Cytosol (correct)
  • Cell membrane
  • Nucleus

How many molecules of glucose-6-phosphate enter the pentose phosphate pathway cycle?

  • Four
  • Three (correct)
  • Two
  • One

Which hydrogen acceptor is involved in the HMP pathway according to the text?

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

What is produced in the EM pathway instead of CO2?

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

Which stage of the Pentose Phosphate Pathway involves irreversible oxidative reactions?

<p>Stage 1 oxidative reactions (C)</p> Signup and view all the answers

What is the primary function of the pentose phosphate pathway in erythrocytes?

<p>Generation of NADPH to maintain reduced glutathione (A)</p> Signup and view all the answers

Which of the following organs does not require the oxidative reactions of the pentose phosphate pathway?

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

What is the primary function of the non-oxidative reactions of the pentose phosphate pathway?

<p>Synthesis of nucleotides and nucleic acids (A)</p> Signup and view all the answers

What is the primary consequence of glucose-6-phosphate dehydrogenase (G6PD) deficiency in erythrocytes?

<p>Decreased ability to detoxify free radicals (C)</p> Signup and view all the answers

Which of the following is a precipitating factor for hemolytic anemia in individuals with G6PD deficiency?

<p>Ingestion of fava beans (D)</p> Signup and view all the answers

What is the primary function of NADPH generated by the pentose phosphate pathway in macrophages?

<p>Generation of superoxide anion radicals to kill bacteria (D)</p> Signup and view all the answers

Which of the following is a characteristic of hemolytic anemia caused by G6PD deficiency?

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

What is the primary function of NADPH generated by the pentose phosphate pathway in the lens of the eye?

<p>Maintenance of lens protein transparency (D)</p> Signup and view all the answers

What is the primary function of NADPH generated by the pentose phosphate pathway in testes and ovaries?

<p>Synthesis of steroid hormones (D)</p> Signup and view all the answers

What is the primary function of NADPH generated by the pentose phosphate pathway in lactating mammary glands?

<p>Synthesis of fatty acids for milk production (B)</p> Signup and view all the answers

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