Forensic Science - University of Heritage, 1st Year Biology: Glycolysis

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Questions and Answers

Which molecule is the end product of glycolysis?

  • Pyruvate (correct)
  • NADH
  • Glucose-6-phosphate
  • ATP

What is the role of hexokinase in glycolysis?

  • Shielding the negative charges from the phosphate groups on the ATP molecule
  • Catalyzing the conversion of glucose-6-phosphate into pyruvate
  • Transporting glucose from outside the cell into the cell’s cytosol
  • Catalyzing the conversion of D-glucose into glucose-6-phosphate (correct)

Where does glycolysis take place within the cell?

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

What is the result of the phosphorylation process mentioned in the text?

<p>Glucose-6-phosphate (G6P) (D)</p> Signup and view all the answers

Which enzyme catalyzes the rearrangement of glucose 6-phosphate (G6P) into fructose 6-phosphate (F6P)?

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

What is the role of magnesium in the third step of glycolysis?

<p>Shields negative charges during the reaction (B)</p> Signup and view all the answers

What is the main function of aldolase in glycolysis?

<p>Catalyzing the cleavage of fructose 1,6-bisphosphate into two 3-carbon molecules (C)</p> Signup and view all the answers

Which molecule is the only one that continues in the glycolytic pathway after the action of triosephosphate isomerase?

<p>Glyceraldehyde 3-phosphate (GAP) (D)</p> Signup and view all the answers

Which enzyme rapidly inter-converts dihydroxyacetone phosphate (DHAP) and glyceraldehyde 3-phosphate (GAP) in glycolysis?

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

What is the role of glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in glycolysis?

<p>Dehydrogenating and adding an inorganic phosphate to glyceraldehyde 3-phosphate (C)</p> Signup and view all the answers

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