Biology 1002B Chapter Notes - Chapter 5: Anabolism, Catabolism, Electron Transport Chain

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27 Jan 2016
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Individual reactions that make up metabolism grouped into pathways. Pathways: starting molecules undergo stepwise transformation, one reaction at a time, generates one or more final products: ex. hormone testosterone is the end product of a five- reaction pathway that starts with molecule cholesterol. Energy relationships between the pathways of catabolism and anabolism: energy released from breakdown of energy-rich molecules can be harnessed by anabolic reactions which use the energy to generate macromolecules. Key feature of metabolism: catabolic and anabolic pathways linked through chemical energy: biosynthetic reactions result in formation of new covalent bonds, so require a source of chemical energy. Energy comes from catabolic breakdown of high-energy. Atp: specific form of chemical energy that most often links molecules two types of pathways. Photosynthesis: conversion of carbon dioxide into carbohydrates that can be used by the plant as a source of energy/food: requires the integration of two distinct processed. Calvin cycle: electrons and protons carried by nadph and energy of.

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