[KIN 217] - Final Exam Guide - Everything you need to know! (82 pages long)
29 Nov 2016
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Chapter 1 biochemistry and the unit of life. Unity of biochemistry organisms are remarkably uniform at the molecular level. In reality, it illustrates the unity of life. All organisms on earth have arisen from a common ancestor. 1. 1 living systems require a limited variety of atoms and molecules. O, h, c make up 98% of the atoms in an organism. H and o are so common b/c of the ubiquity of water matrix of life . Most large molecules in living systems are made up predominantly of c. Combustion of fuel molecules provides energy to power the cell. Both form 4 covalent bonds crucial to construction of large molecules. C-c bonds can form the backbone of large molecules. More energy released when c-c bonds undergo combustion. Thus, c-c molecules are strong construction materials and are better fuels. Co2 soluble in water; can exist as a gas. Si is insoluble in rxns w/ o permanently out of circulation.
