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UD. III. BIOLOGIA CEL·LULAR. Ll. III. 4. Met. i energia, 2: Respiració cel·lular Glucolisi

UD. III. BIOLOGIA CEL·LULAR. Ll. III. 4. Met. i energia, 2: Respiració cel·lular Glucolisi. Glucolisi Consisteix en la transformació de glucosa en 2 molècules de piruvat. Passa al citoplasma Produeix 2 molècules d’ATP

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UD. III. BIOLOGIA CEL·LULAR. Ll. III. 4. Met. i energia, 2: Respiració cel·lular Glucolisi

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  1. UD. III. BIOLOGIA CEL·LULAR. Ll. III. 4. Met. i energia, 2: Respiració cel·lular Glucolisi Glucolisi Consisteix en la transformació de glucosa en 2 molècules de piruvat. Passa al citoplasma Produeix 2 molècules d’ATP 2 molècules de NADH

  2. Citric acid cycle Glycolysis Oxidation phosphorylation ATP ATP ATP Glucose LE 9-9a_1 ATP Hexokinase ADP Glucose-6-phosphate

  3. Citric acid cycle Glycolysis Oxidation phosphorylation ATP ATP ATP Glucose LE 9-9a_2 ATP Hexokinase ADP Glucose-6-phosphate Phosphoglucoisomerase Fructose-6-phosphate ATP Phosphofructokinase ADP Fructose- 1, 6-bisphosphate Aldolase Isomerase Dihydroxyacetone phosphate Glyceraldehyde- 3-phosphate

  4. 2 NAD+ Triose phosphate dehydrogenase NADH 2 + 2 H+ LE 9-9b_1 1, 3-Bisphosphoglycerate 2 ADP Phosphoglycerokinase 2 ATP 3-Phosphoglycerate Phosphoglyceromutase 2-Phosphoglycerate

  5. 2 NAD+ Triose phosphate dehydrogenase NADH 2 + 2 H+ LE 9-9b_2 1, 3-Bisphosphoglycerate 2 ADP Phosphoglycerokinase 2 ATP 3-Phosphoglycerate Phosphoglyceromutase 2-Phosphoglycerate Enolase 2 H2O Phosphoenolpyruvate 2 ADP Pyruvate kinase 2 ATP Pyruvate

  6. Energy investment phase Glucose 2 ATP 2 ADP + 2 P used Citric acid cycle Glycolysis Oxidative phosphorylation Energy payoff phase formed ATP ATP ATP 4 ADP + 4 P 4 ATP 2 NADH + 2 H+ 2 NAD+ + 4 e– + 4 H+ 2 Pyruvate + 2 H2O Net 2 Pyruvate + 2 H2O Glucose 4 ATP formed – 2 ATP used 2 ATP 2 NAD+ + 4 e– + 4 H+ 2 NADH + 2 H+

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