The concentration of glucose outside a bacterial membrane of thickness 10 nm is found to be 0.5mol/dm3. Inside the cell the glucose concentration is 0.05 mol/dm3. Measurement of the amount of glucose crossing the bacterial membrane yields a flux of 1.20 mol*m-2*s-1. Assuming that this glucose flux is due solely to diffusion, determine the diffusion coefficient of glucose. Assume that pores constitute 5.0% of the bacterial membrane area.
The concentration of glucose outside a bacterial membrane of thickness 10 nm is found to be...
Consider a biological membrane 10.0 nm thick. The diffusion coefficient for potassium ions crossing this biological membrane is 1.00 X 10 -16 m2/s. a) Draw a representation of the membrane and the diffusion of potassium ions. b) Calculate the flow rate of potassium ions moving across an area 250 nm by 250 nm, if the concentration difference across the membrane is 0.500 mol/m3.
Consider the following hypothetical problem. Potassium ions have a concentration of 115 x 10-3 mol/liter inside the cell and 4.5 x 10-3 mol/liter outside the cell. The cell wall has a channel through which the potassium ions can travel and it is 25.0 nm in length and 4.00 nm in diameter. Take the diffusion coefficient of potassium to be 3.00 x 10-9 m2/s. A. What is the difference in concentration, Δc across the cell wall in molecules/m3? B. What is...
Consider the following hypothetical problem. Potassium ions have a concentration of 115 x 10-3mol/liter inside the cell and 4.5 x 10-3 mol/liter outside the cell. The cell wall has a channel through which the potassium ions can travel and it is 25.0 nm in length and 4.00 nm in diameter. Take the diffusion coefficient of potassium to be 3.00 x 10-9 m2/s. A)What is the difference in concentration, Δc across the cell wall in molecules/m3? B)What is the cross-sectional area...
Consider the following hypothetical problem. Potassium ions have a concentration of 115 x 10*3 molliter inside the cell and 4.5 x 10 mol/liter outside the cell. The cell wall has a channel through which the potassium ions can travel and it is 25.0 nm in length and 4.00 nm in diameter. Take the diffusion coefficient of potassium to be 3.00 x 109 m2ls. What is the difference in concentration, Δc across the cell wall in molecules/m3? molecules/m Submit Request Answer...
summatize the following info and break them into differeng key points. write them in yojr own words
apartus
6.1 Introduction—The design of a successful hot box appa- ratus is influenced by many factors. Before beginning the design of an apparatus meeting this standard, the designer shall review the discussion on the limitations and accuracy, Section 13, discussions of the energy flows in a hot box, Annex A2, the metering box wall loss flow, Annex A3, and flanking loss, Annex...