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- QUESTION 2 To establish a standard curve for a BSA standard curve using Bradford, the spectrophotometer wavelength is set on which value? O the wavelength at which the BSA-Bradford complex's absorption value is the highest O the highest wavelength possible O the wavelength at which the BSA-Bradford complex's absorption value the lowest O the wavelength at which the Bradford's absorption value is the highest the wavelength at which the Bradford's absorption value is the lowest O the lowest wavelength possibleQUESTION 1 What is 105 ng ml in: a. ug/ml b. mg 1 C. ug1 d. g/ul (Please list each answer on a separate line, beginning with the corresponding letter. Don't forget units for each answer!) For the toolbar, press ALT+F10 (PC) or ALT-FN+F10 (Mac). 14px E E YA BIUS Paragraph Arial 田 Bヨ田田用 国 田EEt oQUESTION 14 1. As you walk through the Reading Terminal, you browse one of the fish stands. You see a boney fish with a very narrow and thin peduncle. Which is most likely true about this fish? Secondarily aquatic Long distance migrator Lives in a lake or river Uses squaline for buoyancy control|
- QUESTION 3 You obtained the following raw data when setting up a Biuret standard curve: BSA (mg/ml) 0 1 2 3 4 5 6 7 8 9 10 Absorbancy 540nm 0.158 0.210 0.260 0.305 0.360 0.410 0.455 0.510 0.530 0.550 0.554 What would the quality of the line-fit (R2 value) be if you exclude experimental outliers? (Give you answer to 4 decimal places)Question 55 1 p If FLECT- means bend, what word could best mean bend in a backwards direction? quadriflect O baryflect O contraflect O dorsiflectQUESTION 30 Which of the following properties of the cochlea is related to so-called "labeled line" coding that allows to distinguish sound frequencies above 20kHz? A. The changing width and stiffness of the tectorial membrane B. The changing width and stiffness of the basilar membrane C. The speed at which sound waves propagate along the length of the cochlea D. The changing mechanical properties of the cochlear wall along the length of the cochlea E. The increasing density of the cochlear fluid along the length of the cochlea F. None of the above, as this is a property of the auditory nerve fiber cells that receive input from hair cells in the cochlea
- QUESTION 2 Two tubes are attached to one another in series. The first tube has a diameter that is 3 times larger than the second tube. Therefore: The velocity is identical in both tubes The velocity in the first tube is 9 times lower than the second tube The velocity in the first tube is 3 times lower than the second tube The velocity in the first tube is 9 times higher than the second tube The velocity in the first tube is 3 times lower than the second tubeQUESTION 11 Green Rf = 0.89 Red Rf 0.81 Blue Rf = 0.72 Yellow Rf = 0.77 Which colored pigment has the greatest affinity for the stationary phase? O yellow Ⓒred O green O blueQuestion 33 Orciprenaline (C₁₁H₁7NO3, 211.258 g/mol) is a bronchodilator used in the treatment of asthma. The BP assay for orciprenaline tablets is described below. HO The following information was obtained during the assay: Weight of 20 tablets = 2.5564 g Weight of tablet powder assayed = 0.5266 g Absorbance reading - 0.5868 Stated content per tablet = 20 mg A (1%, 1 cm) at 276 nm = 72.3 OH H N OH "Weigh and powder 20 tablets. Shake a quantity of the powder containing 80 mg of orciprenaline sulphate with 50 mL of 0.01 M hydrochloric acid (HCI), filter and add sufficient 0.01 M HCI to the filtrate to produce 100 mL. Dilute 10 mL to 100 mL with 0.01 M HCI and measure the absorbance of the resulting solution at the maximum at 276 nm." Orciprenaline 4 Answer the following questions, explaining your reasoning clearly. a) Calculate the amount of orciprenaline in the tablet powder analyzed. b) Calculate the average amount of orciprenaline per tablet. c) Calculate the percentage of the stated…
- Question 8 Not yet ansW Write any four harmful effects of vibration. B I ==|三| hpQUESTION 3 You obtained the following raw data when setting up a Bradford standard curve: BSA (mg/ml) Absorbancy 595nm 0.225 1 0.310 0.420 3 0.510 4 0.610 0.720 0.810 7 0.915 8 0.950 9 0.980 10 0.990 Set up a standard curve. What would the quality of the line-fit (R2 value) be if you exclude experimental outliers? (Give you answer to 4 decimal places)QUESTION 8 Given the following, what is the partial pressure of gas B (mm Hg) in this mixture of gases? Mixture of gases includes gases A, B, and C. The total pressure exerted by the gaseous mixture is 300 mm Hg. Gas A = 50% of the total gas, Gas B = 10% of the total gas, and Gas C = 40% of the total gas. 50 300 30 O 10