3-L1+
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Questions and Answers

Where does the shunt pathway take place in the cell?

  • Endoplasmic Reticulum
  • Cytosol (correct)
  • Mitochondria
  • Nucleus

What is the main function of the pentose phosphate pathway?

  • Oxidation of glucose
  • Generation of 5 carbon residues (correct)
  • Formation of CO2
  • Production of ATP

Which hydrogen acceptor is used in the HMP pathway?

  • NAD+
  • ATP
  • FADH2
  • NADPH (correct)

How many molecules of CO2 are produced in the HMP pathway per molecule of glucose 6-phosphate oxidized?

<p>2 (C)</p> Signup and view all the answers

Which stage of the pentose phosphate pathway involves irreversible reactions?

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

What is the final product of the oxidative reactions in the pentose phosphate pathway?

<p>Ribulose 5-phosphate (D)</p> Signup and view all the answers

Which physiological significance of the HMP pathway involves the liver, lactating mammary glands, adipose tissue, adrenal cortex, erythrocytes, testes, ovaries, and lens of eyes?

<p>Generation of reducing equivalents for reductive biosynthesis (D)</p> Signup and view all the answers

Which organ is NOT mentioned as a site where the nonoxidative reactions of the pentose phosphate pathway occur?

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

What is the main physiological function of NADPH in the prevention of methemoglobinemia?

<p>Reduction of iron in hemoglobin to prevent oxidation (C)</p> Signup and view all the answers

Which factor contributes to the severity of hemolytic anemia in individuals with G6PD deficiency?

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

In G6PD deficiency, what can result from diminished G6PD activity's impact on cellular detoxification?

<p>Anemia, jaundice, black urine (B)</p> Signup and view all the answers

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

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

Which organ is primarily affected by G6PD deficiency due to the role of the pentose phosphate pathway in NADPH generation?

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

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