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Chemistry 2100 Chapter 28. Carbohydrate Catabolism glycolysis: glucose pyruvate acetyl CoA TCA Cycle: acetyl CoA CO 2 + NADH / FADH 2 oxidative phosphorylation:

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Presentation on theme: "Chemistry 2100 Chapter 28. Carbohydrate Catabolism glycolysis: glucose pyruvate acetyl CoA TCA Cycle: acetyl CoA CO 2 + NADH / FADH 2 oxidative phosphorylation:"— Presentation transcript:

1 Chemistry 2100 Chapter 28

2 Carbohydrate Catabolism glycolysis: glucose pyruvate acetyl CoA TCA Cycle: acetyl CoA CO 2 + NADH / FADH 2 oxidative phosphorylation: NADH / FADH 2 ATP

3 Glycolysis

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8 H phosphofructokinase

9 H

10 H

11 H H

12 H H

13 H H

14 H H

15 H H

16 N H C O NH 2 AD dehydrogenase 1,3-bisphospho glycerate NADH NAD + glyceraldehyde 3-phosphate + HPO 4 -2 + C CH 2 O OHH O PO 3 3 O N C O NH 2 HH AD C CH 2 O OHH H PO 3 O -2

17 1,3 bisphospho glycerate

18 1,3 bisphospho glycerate

19 1,3 bisphospho glycerate 3-phospho glycerate

20 1,3 bisphospho glycerate 3-phospho glycerate 2-phospho glycerate

21 H O 2-phospho glycerate

22 H O 2-phospho glycerate

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26 pyruvate

27 pyruvic acid(–)-lactic acid Anaerobic Glycolysis pyruvatelactic acid

28 pyruvic acidacetaldehydeethanol Fermentation pyruvateacetaldehydeethanol

29 TriCarboxylic Acid Cycle Prep pyruvate

30 http://highered.mcgraw- hill.com/sites/0072507470/student_view0/ chapter25/animation__how_glycolysis_wo rks.htmlhttp://highered.mcgraw- hill.com/sites/0072507470/student_view0/ chapter25/animation__how_glycolysis_wo rks.html

31 Fatty Acids and Energy Fatty acids in triglycerides are the principal storage form of energy for most organisms. –Hydrocarbon chains are a highly reduced form of carbon. –The energy yield per gram of fatty acid oxidized is greater than that per gram of carbohydrate oxidized.

32  -oxidation

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49 Energy Yield on  -Oxidation Yield of ATP per mole of stearic acid (C 18 ).

50 Ketone Bodies Ketone bodiesKetone bodies: Acetone,  -hydroxybutyrate, and acetoacetate; –Are formed principally in liver mitochondria. –Can be used as a fuel in most tissues and organs. Formation occurs when the amount of acetyl CoA produced is excessive compared to the amount of oxaloacetate available to react with it and take it into the TCA; for example: –Dietary intake is high in lipids and low in carbohydrates. –Diabetes is not suitably controlled. –Starvation.

51 Ketone Bodies

52 Protein Catabolism


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