HLTH101 : KIN_217_Anthology.doc

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31 Jul 2012
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Chapter 1 - the basic molecular themes of life. All life is based on a number of basic molecular themes, and the tremendous diversity in life forms we see are just variations on them. Biochemistry and molecular biology both try to understand life in molecular terms: Unity of life at the molecular level: on a molecular level, all organisms are very similar -- well at least, the similarities exceed the differences. This is because all organisms are derived from a single ancestor, and so even though there has been a lot of evolution, the basic principles remain the same. This allows us to apply what we know about one organism to another. Living cells obey the laws of physics and chemistry: the energy cycle in life. Introduction: when we build cellular systems, we are making things ordered (the opposite of entropy), and so we need to expend energy in doing so.

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