MICROBIOLOGICAL ENGINEERING - QUESTION 28.3 : In the calculation of the growth of bacteria, absorbance, A in spectrophotometry is used. According to Beer-Lambert Law, A = e x l x c where A is the absorbance of the solution (no unit), l is the distance of light travels through the solution (in cm), e is the molar absorptivity or the molar extinction coefficient [ in L / (mol.cm) ]. For a particular solute and fixed path length : As / Ao = Cs / Co where Ao is the observed signal for a known concentration Co, and As is the observed signal for a sample concentration Cs. (a) For a cell concentration of 560 cells / mL, a spectrophotometre gives an absorbance reading of 1.0. A mixture of concentration 3600000 cells / mL can be diluted in several operations, with each operation having a dilution of 1:20. How many dilutions should be made so that the concentration of this mixture can be calculated within a range of A = 0.0 to 1.0. (b) In another experiment, a sample tube of 1 cm in width is used. Let A = 0.06 and e = 0.0012 ml / (cell.cm). Find the cell concentration of the sample.
1 2340Give a big picture of the entire SRAM Layout showing your placements of SRAM Cells, Row Decoders, Column Decoders, Read Circuit, Write Circuit and Buffers
1061Write a program, where i have a grid with many cells, how many paths are possible from one point to other desired points.
1191Is there anything I can do to prevent my LTPA keys from becoming out of sync between my cells?
IBM,
855What is the wall resistance of plant cells? Does this resistance facilitate or make it difficult the entrance of water in the cell?
906How do the amoeboid movements occur? What are examples of beings and cells that use such movements for locomotion?
885What are some examples of movement created by the contraction of sarcomeres of the muscle cells?
821
Does calcium protect cells from chemotrypsin ?
what are adherent cells ?
How to grow adherent cells without attachment?
Perform the following tasks using MS-EXCEL: FUEL ESTIMATES COMPUTATIONS: This project is to compute the fuel needed for two types of airplanes, and the cost of the fuel. You must do all computations using formula, and do a chart. Use Page Setup to make the left margin 0.5 and the right margin 0.5 also. Put your name in the Title line, after "Fuel Estimates". Note the following: ? Col. D - H: You must enter correct formulas under Columns D through H (Flying Fuel, Reserve Fuel, Holding Fuel, Total Fuel Needed and Estimated Fuel Cost)!! Read and compute carefully! ? Cells C12, C13, C14, H13 or H14: When you use these cells in a formula, you must make them absolute cell references (F4 key after your type the cell reference, or enter the $ sign manually) ? Graph/Chart: Select cells A3:B8 (Plane and Flight). Hold down the "Control" key and select D3:D8. Hold down the "Control" key and select G3:G8. Create a chart (Insert- Chart, Finish) and position it in a pleasing way under the data for the flight. Print it on one sheet, in landscape mode. ? Print again, but with Formulae: There are two ways to show formulas: 1) Enter Control+` (the key with the ~ at the top left) or 2) Tools-Options, and under "Window Options" put a check mark beside "Formulas", then close the window.
In the Web page we have a table link, if we click on that link all the contents under that link will be sorted (asscending/Descending). Now i want to check in which order the list is ? for that i need to get the data in to some var How can i get that cells data?
what are pilot cells
Do you have any idea why 293ft cells don´t grow? I´m usign DMEM medium + sodium pyruvate + L-Glu + NEA + 10%FCS
What is the wall resistance of plant cells? Does this resistance facilitate or make it difficult the entrance of water in the cell?
What is deplasmolysis of plant cells?
What is the formula of the DPD for withered (shrank) plant cells? How is that situation possible?
What is the reaction-taking place when H2 receptor binds to mast cells and basophils?
What is the response type and activity shown by effector molecule cytotoxic t cells?
What is the host defense mechanism shown if the infection is through toxin-induced damage of host cells?
What are the values of dpd for plant cells under hypertonic, isotonic and hypotonic media?
How we can have different cells in each row in