CHEM 3330 final practical exam questions and answers solved

what effects the distance traveled by a solute in thin layer chromatography? - Correct Answers molecular polarity and structure (weight, geometry, C-C double bonds) Thin Layer Chromatography stationary phase - Correct Answers paper thin layer chromatography mobile phase - Correct Answers the solvent (water / alcohol) we used sodium citrate isopropanol EVALI - Correct Answerse-cigarette or vaping associated lung injury Rf equation - Correct AnswersRf=distance traveled by substance/total distance traveled by solvent thin layer chromatography kinetics - Correct AnswersThe study of reaction rates and the factors that affect them thermodynamics - Correct Answersthe study of the amount of energy in a chemical reaction exothermic reaction - Correct Answersenergy of reactants energy of products endothermic reaction - Correct Answersenergy of reactants energy of products Benedict's solution - Correct Answerscopper ions go from blue to red in the presence of a reducing sugar (contains an aldehyde group) and heat invertase - Correct Answersenzyme that breaks down sucrose into glucose and fructose amylase - Correct Answersenzyme that breaks down starch into disaccharides papain - Correct Answersenzyme that breaks down polypeptides and essential amino acids Calcium concentration equation - Correct Answerscalcium(mg/dL)=(patient absorbance/standard absorbance)*concentration of standard what can increase the intestinal absorption of calcium - Correct Answerscalcitonin, parathyroid hormone, and vitamin D how do you convert a calcium concentration from mg/dL to mmol/L - Correct Answersdivide by 4 the relationship between calcium and phosphate levels in plasma - Correct Answersinversely proportional calcium in our bodies - Correct Answersbones 99% - crystalline hydroxyapatite circulating 0.5% - free (ionized) calcium 0.4% - bound to protein in plasma 0.1% - inorganic complexes calcium's functions in the body - Correct Answersblood coagulation, cell communication, metalloenzymes, and neuromuscular function Microhematocrit - Correct AnswersEDTA tube 1/2 to 3/4 full centrifuged at 10-12,000g for 5 minutes %Hct=(volume packed red cells/total volume of blood)*100 competitive inhibition - Correct Answersinhibitor molecule binds to the active site of the enzyme uncompetitive inhibition - Correct Answersinhibitor molecule binds to a site on the enzyme and results in a conformational change (increasing substrate concentration does not effect results because they are not competing for the same spot) noncompetitive inhibition - Correct Answersinhibitor binds both the active site of the enzyme and the enzyme-substrate complex V-max - Correct Answersthe max velocity a specific amount of enzyme can create product (wont speed up even with more substrate added) enzyme used in Enzyme Analysis lab - Correct Answersalkali