TAILIEUCHUNG - Lecture Campbell biology (9th edition) - Chapter 8: An introduction to metabolism

This chapter presents the following content: An organism's metabolism transform matter and energy, of thermodynamics, The free-energy change of a reaction tells us whether or not the reaction occurs spontaneously, ATP powers cellular work by coupling exergonic reactions to engergonic reactions, enzymes speed up metabolic reactions by lowering energy barriers, regulation of enzyme activity helps control metabolism. | An Introduction to Metabolism Chapter 8 Overview: The Energy of Life The living cell is a miniature chemical factory where thousands of reactions occur The cell extracts energy and applies energy to perform work Some organisms even convert energy to light, as in bioluminescence © 2011 Pearson Education, Inc. Concept : An organism’s metabolism transforms matter and energy, subject to the laws of thermodynamics Metabolism is the totality of an organism’s chemical reactions Metabolism is an emergent property of life that arises from interactions between molecules within the cell © 2011 Pearson Education, Inc. Organization of the Chemistry of Life into Metabolic Pathways A metabolic pathway begins with a specific molecule and ends with a product Each step is catalyzed by a specific enzyme © 2011 Pearson Education, Inc. Figure Enzyme 1 Enzyme 2 Enzyme 3 Reaction 1 Reaction 2 Reaction 3 Product Starting molecule A B C D Figure In-text figure, p. 142 .

• Sinh học
• Campbell biology
• Biology systems
• Lecture Biology
• Biological sciences
• Anabolic pathways
• Catabolic pathways
• Lecture Campbell biology
• Systems biology
• Molecular biology
• Molecular biology of the gene
• Study of biology
• Exploring life
• Chemical basis of life
• Chemical bonds
• Molecules of cells
• Organic compounds
• Endomembrane system
• Energy converting organelles
• Membrane structure
• Enzymes function
• Cellular respiration
• Stages of cellular respiration
• Solar energy
• Chemical energy
• Cellular basis of reproduction
• Cell division
• Patterns of inheritance
• Mendels laws
• Gene expression
• Control of gene expression
• Mendel's laws