Glycolysis: Metabolic Pathway of Glucose
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Questions and Answers

Where does glycolysis occur in the cell?

  • Mitochondria
  • Nucleus
  • Endoplasmic reticulum
  • Cytosol (correct)
  • What is the main function of glycolysis?

  • To break down ATP to release energy
  • To produce ATP from pyruvate
  • To convert glucose into pyruvate (correct)
  • To convert pyruvate into glucose
  • How many net molecules of ATP are generated in glycolysis per molecule of glucose?

  • Five
  • Two (correct)
  • Zero
  • Four
  • Which enzyme is responsible for the transfer of pyruvate to lactate?

    <p>Lactate dehydrogenase</p> Signup and view all the answers

    In which stage of glycolysis are two phosphorylated 3-carbon compounds formed?

    <p>(Splitting stage)</p> Signup and view all the answers

    What type of process is glycolysis in terms of oxygen requirement?

    <p>Oxygen-independent process</p> Signup and view all the answers

    What is the overall energy yield from the complete breakdown of one molecule of glucose in glycolysis?

    <p>2 ATP</p> Signup and view all the answers

    Which enzyme catalyzes the conversion of glucose to glucose-6-phosphate in the first step of glycolysis?

    <p>Hexokinase</p> Signup and view all the answers

    In which phase of glycolysis are ATP molecules used to phosphorylate glucose?

    <p>Investment phase</p> Signup and view all the answers

    What is the fate of pyruvate in the presence of mitochondria and oxygen in the cells?

    <p>Enters the Krebs cycle</p> Signup and view all the answers

    Where does glycolysis take place within a cell?

    <p>Cytosol</p> Signup and view all the answers

    What is the main product of glycolysis under anaerobic conditions?

    <p>Lactate</p> Signup and view all the answers

    Does glycolysis produce carbon dioxide as a byproduct?

    <p>No, carbon dioxide is not produced during glycolysis.</p> Signup and view all the answers

    What is the primary purpose of glycolysis?

    <p>To break down glucose to produce energy in the form of ATP and NADH</p> Signup and view all the answers

    Is glycolysis an aerobic or anaerobic process?

    <p>Both aerobic and anaerobic</p> Signup and view all the answers

    What is the net gain of ATP molecules in glycolysis?

    <p>Two molecules</p> Signup and view all the answers

    What is the main function of lactate dehydrogenase in glycolysis?

    <p>Transfer of pyruvate to lactate</p> Signup and view all the answers

    Which stage of glycolysis involves the formation of two phosphorylated 3-carbon compounds?

    <p>Splitting stage</p> Signup and view all the answers

    Under anaerobic conditions, the main product of glycolysis is:

    <p>Lactate</p> Signup and view all the answers

    In which cellular compartment does glycolysis occur?

    <p>Cytosol</p> Signup and view all the answers

    Which enzyme catalyzes the conversion of fructose-6-phosphate to fructose-1,6-bisphosphate in glycolysis?

    <p>Phosphofructokinase</p> Signup and view all the answers

    What is the net ATP production per molecule of glucose in glycolysis?

    <p>2 ATP</p> Signup and view all the answers

    What is the fate of pyruvate in the absence of mitochondria and oxygen in the cells?

    <p>It is converted to lactate</p> Signup and view all the answers

    In which phase of glycolysis does the phosphorylation of glucose occur?

    <p>Investment phase</p> Signup and view all the answers

    What enzyme catalyzes the conversion of glucose to glucose-6-phosphate in the first step of glycolysis?

    <p>Hexokinase</p> Signup and view all the answers

    Which process follows glycolysis in the absence of oxygen and mitochondria?

    <p>Fermentation</p> Signup and view all the answers

    What is the primary location of glycolysis within a cell?

    <p>Cytosol</p> Signup and view all the answers

    What is the main advantage of glycolysis in terms of ATP production?

    <p>Rapid production of ATP</p> Signup and view all the answers

    What is the end product of glycolysis in aerobic conditions?

    <p>$2$ molecules of pyruvate</p> Signup and view all the answers

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