T F 1 The Krebs cycle is the final common pathway for the oxidation of fuel molecules derived from carbohydrates triacylglycerol and proteins 2 Dinitrophenol is an uncoupler of oxidative phosphorylation and results in high ATP yields and rapid oxidation of NADH 3 The dissociation of cytochrome C from the respiratory chain begins the cascade of events leading to cell death 4 The main regulatory enzyme of the Krebs cycle is isocitrate dehydrogenase ATP has a negative effect of this enzyme It is also known that high concentrations of ATP inhibit cellular respiration 5 The Mitchell chemiosmotic theory explains how uncouplers work and also offers an explanation for the complicated nature of complex V 6 Walker at Oxford University determined the X Ray structure of ATP synthetase 7 NADH in photosynthesis is formed in light reactions and is then converted to NADPH in dark reactions 8 Oxygen formation in chloroplasts involves a cobalamin protein 9 P710 is a special chlorophyll which when activated by light releases high energy electrons 10 Triacylglycerol breakdown results in the release of fatty acids and glycerol 11 The production of ketone bodies occurs when oxaloacetate is not available to begin the Krebs cycle and the acetyl CoA builds up 12 The fixation of carbon dioxide in chloroplasts requires the enzyme rubisco 13 Photosystem II is activated by light at 680nm while photosystem I is activated by light 700nm 14 C4 plants have 2 different cell types while C3 plants consist of only one cell type 15 Photophosphorylation oxygen evolution and NAD reduction are light driven reactions 16 Photorespiration occurs in CAM plants when oxygen instead of carbon dioxide binds to the active site of rubisco resulting in the formation of a 2 carbon compound 3 D 4 D 5 A 7 E 8 B 9 A 10 E 13 E 15 A 6 A 16 C 17 E 18 C 19 E 1 E 2 D 3 B 4 B 5 C 7 E Deals with the citric acid cycle 8 E 9 A 10 C 11 C 12 A 13 C Krebs Cycle 14 D 15 C 16 E 17 C 18 E and D Won t give us that question 19 E 20 A and E Won t give us that question