Consider the transport of K+ from the blood (where its concentration is about 4 mM) into...
Consider the transport of K+ from the blood (where its concentration is about 4 mM) into an erythrocyte that contains 150 mM K+. The transmembrane potential is about 60 mV, inside negative relative to outside. The free-energy change for this transport process is: (These values may be of use to you: R = 8.315 J/mol.K; T = 298 K; 9 (Faraday constant) = 96,480 J/V; N = 6.022 × 1023/mol.)
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Consider the transport of K+ from the blood (where its
concentration is about 4 mM) into...
How much energy does it take to transport an uncharged substrate into a cell if its...
How much energy does it take to transport an uncharged substrate into a cell if its starting inside concentration is 10-fold greater than outside at 37oC ? (These values may be of use to you: R = 8.315 J/mol·K; 9(Faraday constant) = 96,480 J/V; N = 6.022x1023/mol.) Show work.
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and th...
1. Animal cells have a Na,K pump that couples the energy of ATP hydrolysis to transport 3 Na ions out of the cell and 2 K ions into the cell. Inside astrocytes, the concentration of Na is 20 mM and the concentration of K is 130 mM. The extracellular concentrations of Na and K are 145 mM and 5 mM, respectively. Calculate the energy required for the transport of Na and K , with this stoichiometry; assume that the cell...
15 pts Due at the beginning of Class: Friday, November 22 lumen into thien is.0362 mm.de...
15 pts Due at the beginning of Class: Friday, November 22 lumen into thien is.0362 mm.de of an E.coli soorganisms found in the lumen of our intestines. If E. coli cell is 12.4 mm, and if the concentration of lactose in the hange in free energy of transporting 1 mole of lactose from the 7- 96,500 J/mol-V, R-8.3145 J/mol K. The Assignment 10 75 pts Due at th 10. (A) (3 pts) A) E. coli is one of symbiotic microorganisms...
L o Gromatic in cromatic room Membrane Transport Calculate the amount of energy available from or...
L o Gromatic in cromatic room Membrane Transport Calculate the amount of energy available from or required for the transport of 1 mol of Nat from the inside to the outside of the cell at 25°C. The concentration of Nat outside the cell is 200 mM and the concentration of Na' inside the cell is 10 mM. The transmembrane potential is 0.058 V. Show all your work. • What is the amount of energy available from or needed for the...
I need help with C through G please. PeDUL AL U U ULI. Fly. NUVCel 2...
I need help with C through G please.
PeDUL AL U U ULI. Fly. NUVCel 2 8.) The gastric H pump found in the plasma membrane of gastric mucosa cells maintains a cytostolic concentration of K of 145 mM and an H concentration of 3.16 X 10 M. In the stomach, the concentration of K is 10 mM and the Hion concentration is 0.15 M. (A) (2 pts) What is the pH of the cytosol of gastric mucosa cells and...
The Na glucose symporter transports glucose from the lumen of the small intestine into cells lining...
The Na glucose symporter transports glucose from the lumen of the small intestine into cells lining the lumen. Transport of 1 glucose molecule is directly coupled to the transport of 2 Nations into the cell. 2 Na*(out) + 1 glucose(out) - 2 Nat(in) + 1 glucose(in) Assume the following conditions at 37 °C: [Nalin - 12 mm, [Na lout = 145 mm, (glucoseJout = 28 pm, and Ay =-72 mV (inside negative). Faraday constant F = 96,485 C/mol, ideal gas...
al 2019 Assignment 10 75 pts Due at the begin 6.) The gastric pump found in...
al 2019 Assignment 10 75 pts Due at the begin 6.) The gastric pump found in the plasma membrane of gastric m concentration of K of 145 mM and an H concentration 0.15 M. concentration of Kis 10 mM and the contration is at the beginning of November 22 mucosa cell maintains a cytostolic M. In the stomach, thie i nthe (A) (2 pts) What is the pH of the cytosol of pastri pH = -log[A+] Cyt050) = -109 (3x108M...
Given these parameters, what is the AG for K ion transport into the frog muscle cell...
Given these parameters, what is the AG for K ion transport into the frog muscle cell in the presence of Ach? Dr. Knowsalot smiles and nods. "Good," she says. "Now let's see whether K+ ions pass through the open Ach receptors into the cell. As you might remember, these channels are permeable to Na+, K+, and Ca2+. For a typical frog muscle cell, the concentration of K+ is roughly 124 mM inside the cell and 2.30 mM outside the cell."...
In dog skeletal muscle, the extracellular and intracellular concentration of Na+ are 150 mM and 12...
In dog skeletal muscle, the extracellular and intracellular concentration of Na+ are 150 mM and 12 mM, and those of K+ are 2.7 mM and 140 mM, respectively. Calculate the total free energy change as 3 Na+ are transported out and 2 K+ are transported in by the Na+-K+ pump. Assume that the temperature is 25°C and the membrane potential is –60 mV. Give your answer in kJ/mol to 1 decimal place.
1) Calculate the free energy required to move 1 mol of K+ ions from the outside...
1) Calculate the free energy required to move 1 mol of K+ ions from the outside of the cell (where [K+] = 3.1 mM) to the inside (where [K+] = 135 mM) when the membrane potential is -78 mV and the temperature is 34.2°C. Give your answer in kJ/mol. 2) Calculate the rate enhancement that could be accomplished by an enzyme forming one low-barrier hydrogen bond that has a free energy of -45 kJ/mol with its transition state at 31°C.
15 pts Due at the beginning of Class: Friday, November 22 lumen into thien is.0362 mm.de of an E.coli soorganisms found in the lumen of our intestines. If E. coli cell is 12.4 mm, and if the concentration of lactose in the hange in free energy of transporting 1 mole of lactose from the 7- 96,500 J/mol-V, R-8.3145 J/mol K. The Assignment 10 75 pts Due at th 10. (A) (3 pts) A) E. coli is one of symbiotic microorganisms...
L o Gromatic in cromatic room Membrane Transport Calculate the amount of energy available from or required for the transport of 1 mol of Nat from the inside to the outside of the cell at 25°C. The concentration of Nat outside the cell is 200 mM and the concentration of Na' inside the cell is 10 mM. The transmembrane potential is 0.058 V. Show all your work. • What is the amount of energy available from or needed for the...
I need help with C through G please.
PeDUL AL U U ULI. Fly. NUVCel 2 8.) The gastric H pump found in the plasma membrane of gastric mucosa cells maintains a cytostolic concentration of K of 145 mM and an H concentration of 3.16 X 10 M. In the stomach, the concentration of K is 10 mM and the Hion concentration is 0.15 M. (A) (2 pts) What is the pH of the cytosol of gastric mucosa cells and...
The Na glucose symporter transports glucose from the lumen of the small intestine into cells lining the lumen. Transport of 1 glucose molecule is directly coupled to the transport of 2 Nations into the cell. 2 Na*(out) + 1 glucose(out) - 2 Nat(in) + 1 glucose(in) Assume the following conditions at 37 °C: [Nalin - 12 mm, [Na lout = 145 mm, (glucoseJout = 28 pm, and Ay =-72 mV (inside negative). Faraday constant F = 96,485 C/mol, ideal gas...
al 2019 Assignment 10 75 pts Due at the begin 6.) The gastric pump found in the plasma membrane of gastric m concentration of K of 145 mM and an H concentration 0.15 M. concentration of Kis 10 mM and the contration is at the beginning of November 22 mucosa cell maintains a cytostolic M. In the stomach, thie i nthe (A) (2 pts) What is the pH of the cytosol of pastri pH = -log[A+] Cyt050) = -109 (3x108M...
Given these parameters, what is the AG for K ion transport into the frog muscle cell in the presence of Ach? Dr. Knowsalot smiles and nods. "Good," she says. "Now let's see whether K+ ions pass through the open Ach receptors into the cell. As you might remember, these channels are permeable to Na+, K+, and Ca2+. For a typical frog muscle cell, the concentration of K+ is roughly 124 mM inside the cell and 2.30 mM outside the cell."...
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