Campbell12e_Lecture_Ch08 PDF
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This document is a lecture outline on the energy of life and metabolic pathways. It defines metabolic pathways and explains how organisms transform matter and energy. It discusses the key concepts of catabolic pathways and cellular respiration.
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Campbell12e_Lecture_Ch08 Sign in Accessibility Mode Print Chapter 8 An Introduction to Metabo Lecture Outline Overview: The Energy of Life Thousands of reactions occur within the microscopic space of a liv ○ Small molecules are assembled into polymers, which are later cell change. ○ Cells within a multicellular organism may export chemical pro ○ Cellular respiration extracts energy from sugar and other fuels various types of work. The set of reactions that make up cell metabolism are complex, ef responsive to subtle changes. Concept 8.1 An organism’s metabolism transforms matter and e of thermodynamics. The sum total of an organism’s chemical reactions is called Metabolism is an emergent property of life that arises from interac the orderly environment of the cell. The chemistry of life is organized into metabolic pathways. A metabolic pathway begins with a specific molecule, which is th defined steps to form a specific product. A specific enzyme catalyzes each step of the pathway. Catabolic pathways release energy by breaking down complex m Page 1 of 13 A major pathway of catabolism is cellular respiration, in which down in the presence of oxygen to carbon Give Feedback dioxide and water. to Microsoft The energy released by catabolic pathways becomes available :
