anatomy 2404_Ch.2_Chem_B_Visual

anatomy 2404_Ch.2_Chem_B_Visual - – pH is a log scale •...

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BIOL 2404 Lecture outline (Ch.2B) What’s the difference? Chemical composition: inorganic compounds water (~                % of body weight) chemical properties absorbs and releases energy slowly, requires a large amount of helps us maintain  it’s an excellent solvent dissolves  participates in chemical reactions . provides  example serves as a  example salts and ions example: NaCl ions dissociate  why? Acid releases . 1
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strong vs. weak acids – examples Base releases . strong vs. weak bases – examples What happens when acids and bases pH units scale: indicates hydrogen ion concentration pH value versus [H+] pH =  example:   what is the pH if [H+]  =  pH =  regions of pH scale acids, bases, neutral estimate the pH of a strong acid  a weak base  pure water
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physiological fluid (blood) acidic, basic, or neutral?
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Unformatted text preview: . – pH is a log scale! • pH 2 versus pH 3 • small change in pH Chemical composition: organic compounds • Carbohydrates – contain – sizes: • monosaccharides – . • disaccharides – . • polysaccharides – glycogen (in our cells), composed of – starch • Carbohydrates – why are they important? • primary function of glucose: • glucose also provides – why use artificial sweeteners? 3 • Lipids – composed of – types • triglycerides (fats & oils) – functions • . – composed of • saturated fatty acids – all carbons have 4 » forms » solid at – examples? • unsaturated fatty acids – some carbons have a » forms » liquid at – examples? – Lipids – types – phospholipids – composed of – dissolves in water? » . – primary function – Lipids – types – steroids – organization of – includes – various functions 5...
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This note was uploaded on 09/20/2011 for the course BIOL 2404 taught by Professor Royster during the Spring '10 term at Lone Star College System.

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anatomy 2404_Ch.2_Chem_B_Visual - – pH is a log scale •...

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