Cellular Respiration

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Cellular Respiration

Kreb's Cycle

Transition Prep

Electric Transport Chain

*Location: Matrix1. Pyruvate molecule is converted to acetyl CoA2. Each pyruvate loses a carbon as CO2 3. Oxidation --> electrons transfered to NAD4. Net: 2 NADH, 2 acetyl coA, 2 CO2

Cellular Respiration

*Location: Cristae1. 3 places to drop of electrons: reductase, cytochrome, oxidase2. NADH drop off earlier = 3ATP, FAD later = 2 ATP3. Oxidative Phosphorylation - O2 last electron acceptor --> H204. As electrons go through transport chain, H+ ions are pumped from the matrix to intermembrane space5. Difference in concentration, pH,charge--> electrons move through ATP synthase complex, producing ATP6. Net: (10 NADH x 3) + (2 FADH x 2) + 4 ATP = 36-38 ATP and H20

*Location: Matrix1. acetyl coA + C4 molecule --> C6 molecule2. (Remove a Co2, reduce an NAD) x 23. substrate level phosphorylation to make an ATP, reduce an FAD, and reduce an NAD4. do it again with second acetyl coA5. Net: 6 NADH, 2 ATP, 2 FADH

All cells do this!*Location: Cytoplasm1: 2 ATP used to break apart glucose --> 2C3 (G3P)2: Oxidize G3P --> 2 pyruvate acids (3-carbon)3: e- from PGAL reduce NAD --> NADH (redox)4: Substrate level phosphorylation to make 4 ATP5: no oxygen --> fermentation OR plenty of oxygen --> aerobic respiration6. NET: 2 pyruvic acid, 2 ATP, 2 NADH


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