PhysioEx Exercise 8 Activity 4

analyte concentration(C)(mg/ml) injection volume (ul) elution time (time) peak DAD signal(mAU) caffeine 1 1 4.67 302.85 aspartame 5 1 7.53 15.83 benzoic acid 1 1 8.14 89.98 saccharin 1 1 1.91 84.86 mixture(add everything above with 1:1:1:1 ratio)   1 4.47 69.58 How to get the concentration of the mixture in this case?

Carbachol causes contractions the isolated rat ileum to contract. The responses obtained to increasing concentrations of carbachol are tabulated below. Graph the data as log concentration versus % maximum response, using Excel or another spreadsheet program. Use the graph to estimate the EC50 value for carbachol and indicate its position on the graph. Conc (M) Exp 1 Exp 2 Exp 3 (% max response) (% max response) (% max response) 1.00E-09 3.00E-09 10 20 1.00E-08 45 35 48 3.00E-08 57 69 72 1.00E-07 74 81 91 3.00E-07 95 85 96 1.00E-06 100 100 99 3.00E-06 100 98 99

Antigen/Antibody (Ag/Ab) combination assays can detect HIV infection on average______ days earlier than third-generation antigen sandwich assays that only detect antibodies.     Question 7 options:   A)  five to seven   B)  fifteen to thirty   C)  one to two   D)  thirty to forty

Raja and Jada have nutrition degrees and decide to start up a health food store. However, they want to ensure all of their products are recommended by nutrition authorities and they want to understand how they work. They decide to have different sections in their store for different target populations.

EXPERIMENT S: Fill in the table below with the results from the food experiment. Indicate "yes" when the substance was present and "no" when the substance was absent. Results Food Test Food Reducing Sugars Starch Lipids Protein Potato Juice Onion Juice Whole Milk Skim Milk Potato Juice: Reducing Sugars - Potato Juice: Starch-

Help blic Health Ch x 100% 47 HSC 258 - Major Projec X MindTap - Cengage Lea x C The Illustration To- 55750828934189288909969212&elSBN=9781305657571&id%3D1061392007&nbld%321... Q Search References Use the References to access important values if needed for this question. For the following reaction, 65.6 grams of barium hydroxide are allowed to react with 40.9 grams of sulfuric acid. barium hydroxide (aq) + sulfuric acid (aq) >barium sulfate (s) + water (1) What is the maximum amount of barium sulfate that can be formed? grams What is the FORMULA for the limiting reagent? grams What amount of the excess reagent remains after the reaction is complete? Submit Answer

Chemistry Hello! Can you please explain why these answers are wrong? Thank you.

Tube Tris/CaCl, pH8 (ml) BAPNA Trypsin (µL) (µL) Final [BAPNA] (mM) 1 2.895 5.0 100 2 2.89 10.0 100 3 2.875 25.0 100 4 2.85 50.0 100 5 2.80 100 100 6 2.70 200 100 7 2.50 400 100 8 2.10 800 100

q41 IF YOU DO NOT KNOW THE ANSWER PLEASE DO NOT REJECT IT please calculate the unknown concentration of the protein D wih an absorbance value of A412 given the standard curve indicated in the table. write your answers in numbers only with 2 decimals. protein concentration (ug/ml) absorbance 0 0.000 0.02 0.161 0.04 0.284 0.06 0.438 0.08 0.572 0.10 0.762

This is an ungraded practice exam in which he gives us the answers but I would still like to know the reasoning behind

Need full case study with results discussion Introduction etc. Dont use guideline answer ok need full accurate case study.    Case History A 32 year old male was found unconscious in his flat following a night out with  friends. Attempts to resuscitate the male were unsuccessful. The postmortem  indicated sudden cardiac death through cardiac dysrhythmia (arrythmia). There was  no medical history of previous heart disease. Two opened packets of Jumping Beans were found on a table close to the body. A  specimen of cardiac blood was taken and submitted to the toxicology laboratory for  analysis along with the two Jumping Beans packets.  . Guidance for Preparing the Case Report The coursework assessment for the module is to prepare a case report in the form of  a case report scientific paper published in the Journal of Analytical Toxicology. This  guidance information has been taken from the Instructions for Authors for the  Journal of Analytical Toxicology however please use the…

I need help with my homework

Calculate the solubility of PbF, in water at 25 °C. You'll find K data in the ALEKS Data tab. sp Round your answer to 2 significant digits. x10

Can you please help me answer this

Calculate the number of replicate analyses

Need answer fast i'll rate up

The catalytic activity of an insect aminopeptidase was investigatedusing an artificial peptide substrate. The Vmax was 4.0 × 10-7 M/s and the KM was 1.4 × 10-4 M. The enzyme concentration used in the assay was 1.0 × 10-7 M.   What is the value of kcat?     2.86 x 10-3 M     0.25 M/s     4.0 s-1      2.86 x 104 s/M     0.25 s-1

Hello I have asked this question like 3 times and keep getting difference answers can someone check my work please 2 b and C I am really struggling on please help.

Using this set of data, what should the trendline of my graph look like?

need help please and thanks dont understand only need help with C-F Learning Goal: As discussed during the lecture, the enzyme HIV-1 reverse transcriptae (HIV-RT) plays a significant role for the HIV virus and is an important drug target. Assume a concentration [E] of 2.00 µM (i.e. 2.00 x 10-6 mol/l) for HIV-RT. Two potential drug molecules, D1 and D2, were identified, which form stable complexes with the HIV-RT. The dissociation constant of the complex ED1 formed by HIV-RT and the drug D1 is 1.00 nM (i.e. 1.00 x 10-9). The dissociation constant of the complex ED2 formed by HIV-RT and the drug D2 is 100 nM (i.e. 1.00 x 10-7).   Part A - Difference in binding free eenergies Compute the difference in binding free energy (at a physiological temperature T=310 K) for the complexes. Provide the difference as a positive numerical expression with three significant figures in kJ/mol. The margin of error is 2%.   Part B - Compare difference in free energy to the thermal…

how do i find the regression line formula and r ^2 labeled on the graph?

Please send me the question in 20 minutes it's very urgent plz only question number 1

EQD₂ = nd* α Assume a/B (d+(a/B)) (2+(a/B)) BED:= (nd)*(1+ α =2 for late effects and a/B 10 for acute effects 1. Using the Equivalent Dose in 2 Gy Fractions equation, compare the following protocols. Which would have better tumor control? Which would have worse late effects? 42 Gy delivered in 12 fractions; 30 Gy delivered in 5 fractions.

Determine the values of KM and Vmax. For the Vmax obtained, calculate the turnover number assuming that 1 X 10-4 mol of enzyme were used.Substrate concentration (mol L-1) Velocity (mM min-1)2.500 0.5881.000 0.5000.714 0.4170.526 0.3700.250 0.256