Graph of Absorbance vs Time(mins) 1.4 1.2 0.8 0.6 0.4 0.2 10 20 30 40 50 60 70 80 Time (mins) -Group 1 (Ampicilin) -Group 1 (Control) Measurement of bacterial cell growth in LB. 1. Absorbance(600nm)
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calculate growth rate and generation time
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- What is measured at the A280 absorbance values?Calculate the effective quantity (g) of sodium chloride related to tonicity in 100ml of an intravenous fluid labeled "5% dextrose in 0.45% sodium chloride," and indicate whether the solution is isotonic, hypotonic or hypertonic. The answer is Hypertonic and 1.35g NaCl but I don't understand how to get the answer.Calculate the Vmax with the parameters given. All parameters may not be needed to calculate. Kcat = 130 s^-1 Vo = 3.0 μMs^-1 S = 10 μM Et = 0.15 µM
- Using G-25 Sephadex beads (Fractionation range 1000-5000) KD, a sample of Vitamin B12 (MW ~1500 KD) will be: Fully excluded Partially included Fully included the activity of lysozyme was determined by looking at the increase in light scattering per unit time increase in absorbance per unit time. decrease in absorbance per unit time. increase in concentration per unit time.Determine the amount of glucose in the unknown sample by plotting a standard curve of Absorbance at 620 nm on Y-axis and μg of glucose on the x-axis.A 100 ml of a 1% sol'n of boric acid (freezing point = -0.29) isotonic w/ blood by NaCl (freezing point = -0.58). what grams is needed to make it an isotonic? what weight of NaCl is needed to a 2% sol'n of atropine sulfate (E=0.13) made isotonic with blood plasma?
- At 10 am you received a doctors order that you have to Infuse 1,000ml of PNSS in 10 hours to Mr. Dela Cruz. What is the correct rate of this isotonic solution when the drop factor is 10 gtt = 1ml? 15.73 qtts/min- 31.249 qtts/min 16.67 qtts/min 18 qtts/minCalculate the unknown concentration of the PROTEIN C with an absorbance value of A412 given the standard curve indicated in the table below. Write your final answer (NUMBER ONLY) in two decimal places rounded off. Protein concentration (µg/mL) 0 0.02 0.04 0.06 0.08 0.10 Your answer APIENT Absorbance 0.000 0.161 0.284 0.438 0.572 0.762Calculate the concentration of 0.2ml amino acid when path length is 1cm and has an absorbance value of 0.50, if a 0.5ml solution of same amino acid has a concentration of 0.72mg/ml with an absorbance of 0.9.
- Table 1 - Comparison of the effect of catechol concentration on the amount of product formed. Absorbance Potato extract Absorbance 0 mins after 30mins (2nd reading) (mL) 1st reading 1 Tube # la blank 2a 3a 4a 1 1 1 dH₂O Catechol (mL) (mL) 7 5 3 1 0 2 4 6 0.00 0.060 0.033 0-05-2 Q4) Give 2 reasons for adding dH₂O to these tubes in Table 1? Time for reading: 3:21 -0.11 Absorbance: Time for reading: 3.36 Q5) Tube la serves as a control, but why is this control needed? Absorbance: 0.197 Time for reading: 3.37 Based on the data from Table 1 answer these questions: Q1) What is the name of the enzyme found in potato extract? Answer: catechol Q2) What is the substrate? Answer: THO Q3) Name of product of this enzyme catalyzed reaction? Answer: Absorbance: 0.152 Time for reading: 3:39 Absorbance: . 166 ness Catechol Benzoquinone Subtract 1st from 2nd reading -0.01 0-137 0.11.19 0.119 Q6) Notice that your 1st absorbance reading in tubes 2a-4a are quite similar but it then becomes very different…Infuse heparin at 1,200 units per hour from a solution containing 40,000 units of heparin in 500 mL D5W. How many mL/hr will deliver the ordered dosage?After three minutes, the concentration of drug Zip in the red blood cells is 10 mmoles l-1. What is the average rate of entry of drug Zip into the red blood cells in units of moles min-1 red blood cell-1 during the first three minutes after placing the red blood cells into the bathing solution? Assume that each red blood cell occupies about 1 x 10-13 liters.