Use the appropriate equation to calculate the free energy change for the movement of Natinto the depolarized nerve cell where the membrane potential is +50mV and the Nain/Naoutratio is 7.3/1. Assume the temperature is 37°C.Stop! For full credit:1. Enter your answer in kJ, kilojoules.2. Do not put units in the box.3. Round your answer to the nearest tenth. If your calculator permits, do not round untilthe end for the sake of continuity.4. If your answer is negative, include the sign and number with no space.

The Nernst equation, named after Walther Nernst, is a powerful tool in electrochemistry that relates…

Answered: Use the appropriate equation to…

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter27: Metabolic Integration And Organ Specialization

Section: Chapter Questions

Problem 3P

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Based on the analytical characteristics discussed, explain why the TSH result is reported this way (TSH ≤ 0.3 mU/L). Please answer if you, don't guess or put random answers, I'll put a thumbs down if the answer is not compliant with the question
One of the important uses of the Nernst equation is in describing the flow of ions across plasma membranes. Ions move under the influence of two forces: the concentration gradient (given in electrical units by the Nernst equation) and the electrical gradient (given by the membrane voltage). This is summarized by Ohms law: Ix=Gx(VmEx) which describes the movement of ion x across the membrane. I is the current in amperes (A); G is the conductance, a measure of the permeability of x, in Siemens (S), which is I/V;Vm is the membrane voltage; and Ex is the equilibrium potential of ion x. Not only does this equation tell how large the current is, but it also tells what direction the current is flowing. By convention, a negative value of the current represents either a positive ion entering the cell or a negative ion leaving the cell. The opposite is true of a positive value of the current. a. Using the following information, calculate the magnitude of Na [ Na+ ]0=145mM,[ Na+ ]i=15mM,Gna+=1nS,Vm=70mV b. Is Na+ entering or leaving the cell? c. Is Na+ moving with or against the concentration gradient? Is it moving with or against the electrical gradient?
Your client, Robert, came back from maximal graded exercise testing and told you that his clinical exercise physiologist recommended moderate exercise intensity physical activity. He is 25-year old, healthy, and his maximal VO2 is 35.5ml/kg/min. His body weight is 162lbs. What is the range of the moderate-intensity in terms of %HRR or %VO2R (Hint: 30-39%HRR or VO2R is light intensity)? Calculate moderate intensity using %VO2 Reserve method:
Consider the following release data for a drug in water Q (Cumulative amount released in mg/cm?) Time (min) 15 12 30 16 45 20 60 23 120 32 240 46 480 65 1. On MS Excel , Plot Q Vs t, and Q Vs vt in separate graphs. Determine the equation and R2 for each curve. solve Q2 only show me by steps 2. Based on the R for the graphs, which release pattern does the drug follow, and why?
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Data for standard glucose concentrations Glucose concentration (mm) 0 0.5 1 1.5 -~~ 2 2.5 A Data for plasma samples B Patient Timepoint (hours) C D E 0 0.5 1 2 0 0.5 1 2 0 0.5 1 2 1. Draw a standard curve of absorbance at 420nm against glucose concentration in mmoles/L. We recommend you use Excel or a similar programme to insert the graph Alternatively, you can draw by hand on graph paper and insert a photo of the graph. OON 0 0.5 1 Absorbance 1 0.000 0.477 0.947 1.234 1.733 2.160 2 0 0.5 1 Absorbance Absorbance 2 0.000 0.482 0.941 1.236 1.721 2.276 Absorbance Glucose concentration Glucose concentration Abs 1 Abs 2 Average from graph (mM) in plasma (mm) 0.635 0.632 0.629 1.368 1.370 1.369 1.382 1.388 1.385 1.151 1.147 1.149 0.566 0.844 0.869 0.772 0.395 0.397 0.399 0.850 0.858 0.854 0.738 0.744 0.741 0.539 0.531 0.535 0.776 0.780 0.778 1.475 1.481 1.478 1.446 1.444 1.445 1.302 1.296 1.299 0.560 0.563 0.848 0.846 0.871 0.870 0.774 0.773 Average 0.000 0.480 0.944 1.235 1.727 2.218 0.440…
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Where necessary calculate the required variables (highlighted in red) on the provided data tables. Gender: Male Age: 22 Height: 177 cm Weight: 93 kg Estimating VO2 max from the 6 minute walk test Table 4. Distance covered in 6-min walk test 721 meters Resting Heart Rate 52 bpm Age 22 -VO2 max (ml/kg/min) = 70.161 + (0.023 x 6MWT [m]) - (0.276 x weight [kg]) - (6.79 x sex, where m = 0, f = 1) - (0.193 × resting HR [beats per minute]) - (0.191 × age [x]). Estimated Max VO2: BIA % Fat: 17.3 % Table 5. Skinfold Measurements of a College Aged Male Participant at 7 Landmark Locations Location Trial 1 (mm) Trial 2 (mm) Trial 3 (mm) Mean (mm) Chest 12 10 N/A Triceps 13 16 14 Abdominal 11 10 N/A Subscapular 17 22 18 Suprailiac 15 16 N/A Midaxillary 22 19 20 Thigh 10 13 12

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