Skip to main content
Back

Glycolysis 3 definitions

Control buttons has been changed to "navigation" mode.
1/15
  • Carbon Numbering
    Assignment of numbers to carbons in molecules based on their origin in glucose, crucial for tracking transformations in glycolysis.
  • DHAP
    A three-carbon intermediate in glycolysis, reflecting carbons 1–3 from glucose, convertible to G3P by triosephosphate isomerase.
  • G3P
    A three-carbon glycolytic intermediate, formed from glucose carbons 4–6 or DHAP, central to subsequent energy-yielding steps.
  • Triosephosphate Isomerase
    An enzyme catalyzing the reversible conversion between DHAP and G3P, with a delta G near zero, ensuring equilibrium.
  • Delta G
    A measure of reaction spontaneity; values close to zero indicate reversibility, as seen in several glycolytic steps.
  • Glyceraldehyde-3-Phosphate Dehydrogenase
    An enzyme facilitating G3P's transformation to 1,3-bisphosphoglycerate, reducing NAD+ to NADH and incorporating inorganic phosphate.
  • NAD+
    An electron carrier reduced to NADH during glycolysis, essential for cellular respiration and electron transport.
  • NADH
    A reduced electron carrier produced in glycolysis, later utilized in cellular respiration for ATP generation.
  • 1,3-Bisphosphoglycerate
    A glycolytic intermediate formed from G3P, containing two phosphate groups, pivotal for ATP production.
  • Phosphoglycerate Kinase
    An enzyme catalyzing the conversion of 1,3-bisphosphoglycerate to 3-phosphoglycerate, generating ATP via substrate-level phosphorylation.
  • ATP
    A molecule produced during glycolysis, serving as the cell's primary energy currency, generated by substrate-level phosphorylation.
  • Substrate-Level Phosphorylation
    A process in glycolysis where ATP is formed directly from a phosphorylated intermediate, independent of electron transport.
  • 3-Phosphoglycerate
    A glycolytic intermediate resulting from removal of a phosphate group from 1,3-bisphosphoglycerate, precursor to 2-phosphoglycerate.
  • 3-Phosphoglycerate Mutase
    An enzyme shifting the phosphate group in 3-phosphoglycerate to form 2-phosphoglycerate, with a reversible reaction.
  • 2-Phosphoglycerate
    A glycolytic intermediate formed by relocating the phosphate group from 3-phosphoglycerate, continuing the pathway toward pyruvate.