1. first coupling enzyme in enzymatic method for bicarbonate analysis a. malate dehydrogenase b. bicarbinate oxidase c. carbonic anhydrase d. pyrivate kinase e. none of the choices
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1. first coupling enzyme in enzymatic method for bicarbonate analysis
a. malate dehydrogenase
b. bicarbinate oxidase
c. carbonic anhydrase
d. pyrivate kinase
e. none of the choices
2. color of the flame produced when using in AAS in potassium determination
a. orange
b. none of the choices
c.. yellow
d. red
e. purple
3. preferred additive for chloride determination
.a. EDTA
b. sodium heparin
c. none of the choices
d. sodium citrate
c. potassium oxalate
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- 1. compute for patient B result of his chloride analysis with the following data using mg/dL unit factor: 355/ mg/dL , Absorbance sample = 0.2148, Absorbance standard = 0.3017 a. 24.8 mg/L b. 25.27 mg/dL c. 2.7119 mmol/L d. 252.7 mg/dL 2. an adult patient suffering from debilitation is supected of calcium deficiency. His doctor requested for calcium anaylusis with the following data gathered standard known value is B: Absorabance is 0.2876. sample absorbance is 0.4291 compute for the calcium in mmol/L a. 53.6mmol/L b. 5.36 mmol/L c. 11.9 mmol/L d. 119mmol/L 3. calculate the value of sodium where the PREC solution has diclored. data gathered are the following: Absorbance of Reagent Blank = 0.3124 Absorbance of sample = 0.114, Absorbance of standard = 0.275 value is 150mmol/L a. 108.2 mmol/L b. 170.4 mmol/L c. 795.72 mmol/L d. 79.5 mmol/LWhich of the following is the test for Methionine A. Biuret Test B. Ninhydrin Test C. Xanthoproteic Test D. Test for sulfur E. Hopkin’s Cole Test F. Millon’s Test Which of the following is the test for Phenylalanine A. Biuret Test B. Ninhydrin Test C. Xanthoproteic Test D. Test for sulfur E. Hopkin’s Cole Test F. Millon’s Test1. The principle behind the test for phosphate is oxidative reaction, conversion of organic form to inorganic phosphate and a precipitation reaction. A. True B. False 2. Sakaguchi test determines amino acids with indole groups present. A. True B. False
- Which of the following sulfonamides is used topically in burns? a. Sulfadoxime b. Apsone c. Silver sulfadiazine d. Sulphaethoxazole e. Sulfamethazine f. Sulfametizole g. Phthalylsulfathiazole.1. a. Disk A b. Disk B c. Disk C d. Disk D 2. a. Strip A with MIC at 0.25 μg/mL b. Strip B with MIC at 0.064 μg/mL c. Strip C with MIC at 0.075 μg/mL d. All of the strips show equal antimicrobial efficacy4.. After mixing 47 grams of glucose in 5 litres of 1X PBS, the final solution is %. A. 0.0094 B. 0.094 C. 0.94 D. 9.4
- Metabolic alkalosis can develop from 1. Hyperchloremia 2. Hypokalemia 3. Hypochloremia 4. Hyperkalemia A. 1 only B. 4 only C. 1 and 3 only D. 2 and 3 only1. pH cannot affect the enzyme - activity A. True B. False 2. It took 6 mins for the disappearance of blue-black color in test tube 4 with 60 degrees Celsius temperature. A. True B. False1. Tools that do not need to be brought when sampling is…a. thermometerb. Hygrometerc. PH meterd. DO meter 2. In the deposition method, one of the conditions that must be met is…a. The precipitate has a high solubility or solubility productb. The precipitate formed must be quite difficult to dissolvec. The precipitate formed does not have to be quite pured. Free precipitate form
- 1. Anaturally occurring antioxidant. (select all the apply) a. vitamin a b. vitamin c c. vitamin e d. butylated toluene 2.Which of the following is not true about fixed oils? select all that apply can be distilled b. can leave a greasy spot a. c. it has characteristics odor d. some are heavier 3.serve as a means of classifying fixed oils. a. iodine number b. Polenske number C. acetyl number d. saponification number 3.used to determine the efficiency/freshness of fixed oil or fat a. acid number b. reichert meissl number c. polenske 4.which of the following is false about lipids? a they are either strongly hydrophobic or amphipathic b.they are more soluble in water c.they are insoluble water.1. Answer the following questions based on the table: Pickling Vinegar Conc NaOH (M) 0.1005 Trial #1 Trial #2 Trail #3 Trial #4 Volume Vinegar (mL) 2.00 2.00 2.00 2.00 Initial Volume NaOH (mL) 0.32mL 0.22 1.02 0.44 Final Volume (mL) 24.25mL 24.20 25.00 24.45 Volume NaOH added (mL) 23.93mL 23.98mL 23.98mL 24.01mL a) In the titration of vinegar, a student uses 12.36 mL of NaOH(aq) (Molarity 0.100 M) to titrate a 2.00 mL sample of vinegar. If the student used lithium hydroxide (Molarity: 0.200 M) instead, what volume of lithium hydroxide would you expect them to use? Show balanced equations. b) A student performs titrations of equivalent amounts of HNO, (aq) with 0.1 M NaOH(aq). The volumes of NaOH(aq) needed to titrate are measured to be: 18.09 mL, 17.92 mL, 18.17 mL. Using % difference, does the student need to perform another titration or are their values within acceptable agreement? Explain why or why not?If you prepared a tube with 10-2 dilution and from this 0.1 ml ia taken into 9 ml medium, the new tube will have: Select one: а. 10-1 b. 10-5 C. 10-3 d. 10-4 e. 10-2 CLEAR MY CHOICE