Chapter+9+-+Harvesting+Chemical+Energy

Chapter+9+-+Harvesting+Chemical+Energy - Chapter 9...

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Chapter 9 – Harvesting chemical energy What pathways capture chemical energy for cellular work? What are the inputs and outputs for each pathway? Where in the cell are these pathways located? Under what conditions do these pathways operate? How are these pathways regulated? How do these pathways connect with the rest of cellular metabolism?
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Cellular Energy Pathways photosynthesis carbohydrates + O Aerobic Anaerobic glycolysis pyruvate oxidation respiration glycolysis fermentation light energy, CO 2 , H 2 O mitochondria CO 2 + H2O + ATP byproduct + ATP cytosol
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Q: ATP is a. a short-term energy-storage compound. b. the cell’s principle compound for energy transfers. c. synthesized mostly within mitochondria. d. the molecule all living cells rely on to do work. e. all of the above
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Structures of ATP, ADP and AMP
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Oxidized and reduced forms of NAD NAD stands for nicotinamide adenine dinucleotide. For NADH + 1/2 O 2 ↔ NAD+ + H 2 O, ΔG = -52.4 kcal/mol.
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Overview of energy pathways
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Cellular locations of energy pathways E u k a r y o t e s P r o k a r y o t e s C y t o p l a s m u Glycolysis h F e r m e n t a t i o n Cytoplasm h G l y c o l y s i s h Fermentation h C i t r i c a c i d c y c l e Mitochondria I n n e r m e m b r a n e h Pyruvate oxidation h R e s p i r a t o r y c h a i n Matrix h C i t r i c a c i d c y c l e
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Chapter+9+-+Harvesting+Chemical+Energy - Chapter 9...

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