2. C 6 H 12 O 6 + 6 O 2 → 6 CO 2 + 6 H 2 O + 2808 kJ Respiration- exothermic or endothermic? In th body- the energy is released in several steps usin adenosine triphopshate, ATP Which reaction type? Draw half reactions. What is oxidized/reduced?

3. Adenosine triphosphate ATP

5. Glucose is transported by the blood to all cells in the body Glucose is degraded in the cytoplasm to pyruvic acid, pyruvate (glycolysis) Glucose + O 2 pyruvate + 2 H 2 O The pyruvate is degraded to CO 2 in the mitocondriae (krebs cycle) 2 pyruvate + 5 O 2 6 CO 2 + 6H 2 O

6. Aerobic or anaerobic?

8. Krebs cycle (not required)

9. Cytochromes- enzymes in the respiration chain

10. Redox reactions with cytochromes C 6 H 12 O 6 + 6 H 2 O 6 CO 2 + 24 H + + 24 e - O 2 + 4 H + + 4 e - 2 H 2 O Fe 3+ + e - Fe 2+ Cu 2+ + e - Cu + ox red

11. Haem group in haemoglobin Poisoned by CO and CN -

12. Haem and cytochrome c oxidase are prostetic groups in the respiratory enzyme http://www.helsinki.fi/lehdet/uh/liite01n.htm