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Respiration

This detailed guide explores the intricate processes of sucrose metabolism, emphasizing glycolysis and aerobic respiration within cellular respiration. It breaks down the anaerobic phase occurring in the cytoplasm, detailing glycolysis with net production of 4 ATP and 4 NADH. The aerobic phase in the mitochondria features the Krebs Cycle and its contributions to energy output, culminating in the total energy yield from sucrose. With analytic insight into 76 ATP produced per sucrose molecule, this overview enhances understanding of metabolic pathways.

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Respiration

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Presentation Transcript

  1. Respiration • 1. Anaerobic • Cytoplasm • Glycolysis • Sucrose 4 Pyruvates • 4ATP • 4 NADH

  2. Respiration • 2. Aerobic • Mitochondria • Krebs Cycle (Citric Acid or TCA Cycle) • 4 Pyr ---> 12 CO2 • 4 ATP • 16 NADH • 4 FADH

  3. Respiration • 3. Total (1+2) • Sucrose ---> 12 CO2 • 8 ATP • 20 NADH = 60 ATP • 4 FADH = 8 ATP • ________________ • 76 ATP for every Sucrose

  4. Glycolysis • Sucrose (12C) Glucose (6C) + Fructose (6C) Invertase - ATP • Glucose G-6-P - ATP • Fructose F-6-P • G-6-P F-6-P (2 x 6C) • -2 ATP (Energy Requirement)

  5. Glycolysis -2 ATP • 2 F-6-P 2 F-1,6 bisP • 2 F1,6bisP 4 PGAL • + 4 NADH • + 4 Pi • 4 PGAL 4 1,3-diPGA • + 4 ATP • 4 1,3 diPGA 4 PGA • Net = 4 NADH

  6. Glycolysis • 4 PGA 4 PEP C4 & CAM + 4 ATP - CO2 • 4 PEP 4 PYR Ethanol (2C) -O2 + O2 Mitochondria 4 x (3 C) = 12 C Net = + 4 NADH + 4 ATP

  7. Glycolysis Sucrose 12 C 2 x 6 C 2 x 6 C 4 x 3 C Pyruvate

  8. Krebs Cycle • 4 PYR 12 CO2 • + 4 NADH • + 1 FADH • + 4 ATP

  9. Energy Recovery • GLYCOLYSISKREBSTOTAL • ATP 4 4 8 • NADH 4 16 20 • FADH 0 4 4

  10. Electron Transport Chain

  11. Final Products • Sucrose • 12 CO2 TCA from Sucrose • - 6 O2 Electron Transport • - 24 H+ NADH +FADH • 12 H2O Electron Transport • 68 ATP Electron Transport • 8 ATP TCA + Glycolysis • 76 ATP • 8 Cal / ATP • 608 Cal / mole of Sucrose

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