Calculate the flux of water across the membrane (~15nm) if the cell is in a hypotonic...
Calculate the flux of water across the membrane (~15nm) if the cell is in a hypotonic solution (H2Ooutside=2 mol/m^3, H2Oinside=3 mol/m^3). The diffusion coefficient of water at 35 degrees celsius is approximately 3x10^-3 mm^2/s. Flicks first law is ? = −? ??/??
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Calculate the flux of water across the membrane (~15nm) if the
cell is in a hypotonic...
You study cardiac myocytes to understand cell permeability during action potentials and how that influences differentiation...
You study cardiac myocytes to understand cell permeability during action potentials and how that influences differentiation of the cell. Modeling the cell and its environment in 1-D, calculate the flux of water across the membrane (~15nm) if the cell is in a hypotonic solution (H2Ooutside=2 mol/m3, H2Oinside=3 mol/m3). The diffusion coefficient of water at 35oC is ~3x10-3 mm2/s
1) Draw (using dots to represent solute) a hypertonic, hypotonic, and isotonic relationship across a membrane....
1) Draw (using dots to represent solute) a hypertonic, hypotonic, and isotonic relationship across a membrane. Which way is water moving in each relationship? 2) Draw plant cells in hypertonic, hypotonic, and isotonic solutions. What happens to each plant cell when placed in each solution? 3) Draw animal red blood cells in hypertonic, hypotonic, and isotonic solutions. What happens to each plant cell when placed in each solution? Thank You!
A microfiltration membrane was tested in the laboratory and found to have a clean-water flux of...
A microfiltration membrane was tested in the laboratory and found to have a clean-water flux of 6500 L/ m2*h at 23°C and 0.69 bar. a) Calculate the specific flux at 20 °C. b) Calculate the membrane resistance coefficient (you can assume dynamic viscosity as 10-3 kg/m*s). c) Does membrane resistance depend on pressure and temperature used for the tests in lab? Please explain your reasoning. Please show step by step solution. Thank you.
The concentration of glucose outside a bacterial membrane of thickness 10 nm is found to be...
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.
s 1.3 x 10 M and CR was zero, the flux of a certain molecule across...
s 1.3 x 10 M and CR was zero, the flux of a certain molecule across a microporous membrane was found to be 0.344 pmol cm2s-1. The free diffusion coefficient of the mate measured was 0.6 x 10-6 cm's1. (pmol-pi rial being comole) A. What is the permeability (p) of the membrane to the material? B. If the thickness of the membrane is 15 x 10 m, what is the equivalent relative area available for diffusion of the material (the...
Questions 19-22, Match the following substances with the mechanisms of transport across membrane into a cell...
Questions 19-22, Match the following substances with the mechanisms of transport across membrane into a cell (May use an answer more than once, but the cel response). each has only 1 correct 19. Chloride lon 20. Steroid Hormones 21. Amino Acids 22. Glucose (A) Simple Diffusion (B) Facilitated Diffusion (C) Osmosis (D) Primary Active Transport Questions 23-25 Answer the following questions using the key (A)Isotonic (B) Hypertonic (C) Hypotonic (D) ALL (E) NONE 23. In which solution is the solute...
point During osmosis, water will travel across the membrane from an area of lower higher solute...
point During osmosis, water will travel across the membrane from an area of lower higher solute concentration. 1 point In a hypotonic solution, an animal cell may while a plant cell will O experience turgor, shrivels because of an outflow of water. O shrivel, bursts because of an inflow of water. O lyse, becomes turgid because of an inflow of water. O Neither plant or animals cells will gain or lose water. ere to search
a) What is the diffusion coefficient (DHCi) at 99 °C for a very dilute solution of hydrogen chloride, HC, in water? The...
a) What is the diffusion coefficient (DHCi) at 99 °C for a very dilute solution of hydrogen chloride, HC, in water? The ionic diffusion coefficients in water at 25°C are 9.31 X 105 cm2/s for H and 2.03 X 105 cm2/s for Cl. Start this problem by calculating the ionic |diffusion coefficients at 99 °C from those given at 25 °C assuming the viscosity of water at 25 °C and 99 °C is the same. Assume there is no current...
Assume that a bacterial cell maintains a proton gradient across its plasma membrane such that the...
Assume that a bacterial cell maintains a proton gradient across its plasma membrane such that the pH inside the cell is 8.0 when the outside pH is 7.0. Calculate the energy available from proton gradient if the membrane potential is +180 mM and the temperature is 25∘C. Find delta G inwards, Express your answer as an integer cal/mol! Please provide formulas and show work
Let’s consider an electrical current through a single ion channel, as shown in the following figure. We start by treating an ion channel as a cylindrical pore through the cell membrane. The channel is...
Let’s consider an electrical current through a single ion channel, as shown in the following figure. We start by treating an ion channel as a cylindrical pore through the cell membrane. The channel is of length L ≈ 5 nm and is filled with water. The concentration difference of Na+ ions across the channel is Δc ≈ 100 mM. This concentration difference produces a flux of ions through the channel given by DΔc/L, where D is the diffusion constant for...
s 1.3 x 10 M and CR was zero, the flux of a certain molecule across a microporous membrane was found to be 0.344 pmol cm2s-1. The free diffusion coefficient of the mate measured was 0.6 x 10-6 cm's1. (pmol-pi rial being comole) A. What is the permeability (p) of the membrane to the material? B. If the thickness of the membrane is 15 x 10 m, what is the equivalent relative area available for diffusion of the material (the...
Questions 19-22, Match the following substances with the mechanisms of transport across membrane into a cell (May use an answer more than once, but the cel response). each has only 1 correct 19. Chloride lon 20. Steroid Hormones 21. Amino Acids 22. Glucose (A) Simple Diffusion (B) Facilitated Diffusion (C) Osmosis (D) Primary Active Transport Questions 23-25 Answer the following questions using the key (A)Isotonic (B) Hypertonic (C) Hypotonic (D) ALL (E) NONE 23. In which solution is the solute...
point During osmosis, water will travel across the membrane from an area of lower higher solute concentration. 1 point In a hypotonic solution, an animal cell may while a plant cell will O experience turgor, shrivels because of an outflow of water. O shrivel, bursts because of an inflow of water. O lyse, becomes turgid because of an inflow of water. O Neither plant or animals cells will gain or lose water. ere to search
a) What is the diffusion coefficient (DHCi) at 99 °C for a very dilute solution of hydrogen chloride, HC, in water? The ionic diffusion coefficients in water at 25°C are 9.31 X 105 cm2/s for H and 2.03 X 105 cm2/s for Cl. Start this problem by calculating the ionic |diffusion coefficients at 99 °C from those given at 25 °C assuming the viscosity of water at 25 °C and 99 °C is the same. Assume there is no current...
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