Oxidative Phosphorylation

3. ATP (9, 12).
5. Differences in both solute concentration and charge concentration across a membrane give rise to this (15, 8).
7. Metabolic pathway in which cells use enzymes to oxidise nutrients, thereby releasing energy which is used to reform ATP (9, 15).
11. An element or compound that donates an electron to another chemical species in a redox chemical reaction (8, 5).
13. Describing a metabolic process requiring oxygen (7).
14. Gain of electrons during burning or corrosion (9).
20. Series of enzyme complexes on the inner membrane of mitochondria (8, 9, 5).
21. General name for life sustaining chemical transformations within the cells of living organisms (10).
23. A common way of storing energy in molecular form (9, 4).
25. Iron containing oxygen transport metalloprotein in red blood cells (11).
27. Double membrane bound cellular organelles (12).

1. Unit of energy contained in a food (7).
2. Ultimate source of the electrons for metabolism (4).
4. NAD (12, 7, 12).
6. Enzyme that creates the energy storage molecule in the mitochondria (3, 8).
8. Believed to be the ancestors of the mitochondria based on analysis of the mitochondrial genome (11, 8).
9. Gaseous component of air that is used to accept electrons in metabolism (6).
10. Type of chemical reactions involving reduction and oxidation (5).
12. Group of two or more atoms held together by chemical bonds (8).
15. Poisonous gas that binds tightly to the haem unit of haemoglobin thereby starving bodily tissues of oxygen (6, 8).
16. Reduced form of NAD+ (4).
17. mnemonic for remembering movement of electrons in reduction and oxidation (3, 3).
18. subatomic particle with a negative elementary electric charge (8).
19. Region in mitochondria with a generally very high proton density (13, 5).
22. Well known poison that quickly causes death by blocking cytochrome c oxidase electron transport (7).
24. A chemical reaction that releases energy by light or heat (10).
26. The space within the inner mitochondrial membrane (6).