Section 5: ABBREVIATIONS AND SYMBOLS 



ABBREVIATIONS 



For the most part, the abbreviations listed below are identical 

 with those given in Webster's New International Dictionary, sec- 

 ond edition, unabridged, 1958. 



ca., circa 



cm., centimeter, centimeters 



cm.^, square centimeter or centimeters 



da., day, days 



equiv., equivalent 



exp., experiment 



f.p., freezing point 



g., gram, grams 



hr., hour, hours 



log, logarithm 



max., maximum 



mg., milligram, milligrams 



\xg., microgram, micrograms 



\x\., microliter, microliters 



min., minute, minutes 



ml., milliliter, milliliters 



mo., month, months 



moL, mole, moles 



no., number 



O.D., optical density 



R.Q., respiratory quotient 



S, salinity 



sci. name, scientific name 



s.g., specific gravity 



sp., species (singular) not indicated by author 



spp., species (plural) not indicated by author 



temp., temperature 



wks., weeks 



wt., weight 



yrs., years 



SYMBOLS 



CHEMICAL SYMBOLS AND FORMULAS 



ADP, adenosine diphosphate 



ATP, adenosine triphosphate 



Ca"*"^, calcium ion 



CaCl2, calcium chloride 



CO, carbon monoxide 



CyFe"^^, ferrocj^ochrome c (reduced cytochrome 



c) 

 CyFe"^"'"'', ferricjd;ochrome c (oxidized cytochrome 





 DDT, dichlorodiphenyltrichloroethane 

 DNP, 2, 4-dinitrophenol 

 DPN or DPN^, oxidized diphosphopyridine 



nucleotide 

 DPNH, reduced diphosphopyridine nucleotide 

 EDTA, ethylenediaminetetraacetic acid(versene) 

 HCN, hydrocyanic acid 

 H2O2, hydrogen peroxide 



IC*", potassium ion 



KCl, potassium chloride 



KCN, potassium cyanide 



M, molar concentration; molarity; molar 



mM, millimol, millimols 



Mg"""^, magnesium ion 



MgCl2, magnesium chloride 



N, nitrogen (element) 



N2, nitrogen (gas) 



Na"*", sodium ion 



NaCl, sodium chloride 



Na"'"/K^, ratio of sodium ions to potassium ions 



O2, oxygen (gas) 



P/O, ratio of phosphate formed to oxygen 



utilized; referred to as the P/O ratio 

 TPN, triphosphopyridine nucleotide 

 TPNH, reduced triphosphopyridine nucleotide 



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