

Carbohydrate Metabolism | Glycolysis, Krebs Cycle, and Electron Transport Chain
5 snips Apr 14, 2023
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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.
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.
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.