Dr. Matt and Dr. Mike's Medical Podcast

Carbohydrate Metabolism | Glycolysis, Krebs Cycle, and Electron Transport Chain

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Apr 14, 2023
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INSIGHT

Glucose Transport and Utilization

  • Glucose is the primary fuel source used in cellular respiration within the body.
  • Glucose requires transporter proteins called GLUTs to enter cells, with different GLUT isoforms in specific tissues.
INSIGHT

Phosphorylation Steps in Glycolysis

  • Glycolysis converts glucose to fructose 1,6-bisphosphate through key phosphorylation steps.
  • ATP is initially invested, then produced later in glycolysis, showing an energy investment and payback.
INSIGHT

NAD+ Role in Glycolysis

  • NAD+ acts as an electron carrier by stealing hydrogens and electrons during glycolysis.
  • This forms NADH, which holds energy for ATP production in later steps.
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