Chapter1_Lecture_BB 2018.pptx

Chapter1_Lecture_BB 2018.pptx - David L Nelson and Michael...

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LEHNINGER PRINCIPLES OF BIOCHEMISTR Sixth Edition David L. Nelson and Michael M. Cox CHAPTER 1 The Foundations of Biochemistry
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Landmarks in the Evolution of Life on Earth
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Many Diverse Living Organisms Share  Common Chemical Features
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Example - All Cells Share Some Common Features
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Some Basic Themes All living things make use of the same types of biomolecules, and all use energy as a result, all living things can be studied using the methods of chemistry and physics The fundamental similarity of cells of all types makes it interesting to speculate on the origins of life both cells and the biomolecules of which they are made must have arisen ultimately from very simple molecules, such as H 2 O, CH 4 , CO 2 , NH 3 , N 2 , and H 2 • Field of Biochemistry draws on many disciplines • allows us to answer questions related to molecular nature of life
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Abiotic Production of Biomolecules in  Artificial System First proof that biomolecules  first arose by chemical  evolution
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What Are the Distinctive Properties of Living Systems?
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