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Lecture Campbell biology: Concepts and connections (Seventh edition) - Chapter 6: How cells harvest chemical energy

The main contents of this chapter include all of the following: Cellular respiration: aerobic harvesting of energy, stages of cellular respiration, fermentation: anaerobic harvesting of energy, connections between metabolic pathways. | Chapter 6 How Cells Harvest Chemical Energy 0 Introduction In eukaryotes, cellular respiration harvests energy from food, yields large amounts of ATP, and Uses ATP to drive cellular work. A similar process takes place in many prokaryotic organisms. © 2012 Pearson Education, Inc. Figure 6.0_1 Chapter 6: Big Ideas Cellular Respiration: Aerobic Harvesting of Energy Stages of Cellular Respiration Fermentation: Anaerobic Harvesting of Energy Connections Between Metabolic Pathways Figure 6.0_1 Chapter 6: Big Ideas CELLULAR RESPIRATION: AEROBIC HARVESTING OF ENERGY © 2012 Pearson Education, Inc. 6.1 Photosynthesis and cellular respiration provide energy for life Life requires energy. In almost all ecosystems, energy ultimately comes from the sun. In photosynthesis, some of the energy in sunlight is captured by chloroplasts, atoms of carbon dioxide and water are rearranged, and glucose and oxygen are produced. © 2012 Pearson Education, Inc. 6.1 Photosynthesis and cellular | Chapter 6 How Cells Harvest Chemical Energy 0 Introduction In eukaryotes, cellular respiration harvests energy from food, yields large amounts of ATP, and Uses ATP to drive cellular work. A similar process takes place in many prokaryotic organisms. © 2012 Pearson Education, Inc. Figure 6.0_1 Chapter 6: Big Ideas Cellular Respiration: Aerobic Harvesting of Energy Stages of Cellular Respiration Fermentation: Anaerobic Harvesting of Energy Connections Between Metabolic Pathways Figure 6.0_1 Chapter 6: Big Ideas CELLULAR RESPIRATION: AEROBIC HARVESTING OF ENERGY © 2012 Pearson Education, Inc. 6.1 Photosynthesis and cellular respiration provide energy for life Life requires energy. In almost all ecosystems, energy ultimately comes from the sun. In photosynthesis, some of the energy in sunlight is captured by chloroplasts, atoms of carbon dioxide and water are rearranged, and glucose and oxygen are produced. © 2012 Pearson Education, Inc. 6.1 Photosynthesis and cellular respiration provide energy for life In cellular respiration glucose is broken down to carbon dioxide and water and the cell captures some of the released energy to make ATP. Cellular respiration takes place in the mitochondria of eukaryotic cells. © 2012 Pearson Education, Inc. Figure 6.1 Sunlight energy ECOSYSTEM Photosynthesis in chloroplasts Cellular respiration in mitochondria (for cellular work) Heat energy Glucose CO2 H2O O2 ATP Figure 6.1 The connection between photosynthesis and cellular respiration Figure 6.1_1 Sunlight energy ECOSYSTEM Photosynthesis in chloroplasts Cellular respiration in mitochondria (for cellular work) Heat energy Glucose CO2 H2O O2 ATP Figure 6.1_1 The connection between photosynthesis and cellular respiration 6.2 Breathing supplies O2 for use in cellular respiration and removes CO2 Respiration, as it relates to breathing, and cellular respiration are not the same. Respiration, in the breathing sense, refers to an exchange of gases. Usually an