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Name BIOL 4360 Assignment/Quiz 3 (15 pts) The following data were obtained from the cells of...
The data in the following table were collected from cortical neurons of a rat. Use this...
The data in the following table were collected from cortical neurons of a rat. Use this information to answer the questions. Ion Intracellular Concentration (mM) Extracellular Concentration (mM) Permeability in Neurons K* Nat Cr 150 15 10 100 160 120 0.002 0.05 0.45
please explain steps and show work no pictures were provided. table 3.13 is given above. 3.46...
please explain steps and show work
no pictures were provided. table 3.13 is given above.
3.46 The cell membrane is covered with protein complexes called Na-K+ pumps. Each pump moves 3 Nations from the intracellular space to the extracellular milieu for every 2 K ions it moves into the cell. During normal function, the pumps work constantly. Under normal conditions, there is a gradient of Nat and K ions between the cell and the extracellular space; the concentrations of these...
Scenario: You will participate in a research project that involves working with neurons that are kept...
Scenario: You will participate in a research project
that involves working with neurons that are kept in cell culture.
These neurons are well established cell model and their
intracellular and extracellular environments are known. Required
parameters are listed in the table below. All your experiments will
be carried out at 20 ?C.
Calculate equilibrium potentials E for all ion species
listed in the table below, as well as the resulting membrane
resting potential VM.
But some calculations first! Intracellular Concentration...
According to biophysics As a result of an experiment following measurements were obtained from a cell:...
According to biophysics
As a result of an experiment following measurements were obtained from a cell: intracellular Na* concentration of 10 mm, intracellular K* concentration of 140 mm, intracellular Cl' concentration of 5 mm, interstitial Na* concentration of 150 mm, interstitial K concentration of 5 mm, interstitial Cl' concentration of 120 mm, relative potassium/sodium permeability of 32. Using these values calculate membrane potential of these cells. (RT/F = 26.7 mV, 37°C) (5 pts). Select one: a. -71 mV b. +71...
15. Given the following concentrations of ions in the intracellular and extracellular fluids of a cell;...
15. Given the following concentrations of ions in the intracellular and extracellular fluids of a cell; inside the cell: Na+ 12mM. K+ 150mM, CI-9mm, Ca2+0.0001mM and outside the cell: Na+ 145mM, K+ 5mM, CI- 125mM, and Ca2+ 2.5mM. Calculate the equilibrium potential for K+ (Ek) if its extracellular concentrations rise from 5 mM to 10 mM. Use the Nernst equation and the ion concentration to perform the following calculation. Comparing this to the normal Ek, is the change a depolarization...
please write thorough answers thanks PART 1 Answer ONLY ONE of the following TWO questions of...
please write thorough answers thanks
PART 1 Answer ONLY ONE of the following TWO questions of Part 1 ie a) OR b) a) A typical, healthy nerve cell in the body has intracellular and extracellular Na, K and Cl' concentrations as shown below. Na concentration: Extracellular: = 150 mm K concentration: Extracellular: = 4 mm Ci concentration: Extracellular: = 100 mm Temperature = 37°C (303.3K) R (the Universal Gas constant) = 8.315 VCmol'k F (Faraday's constant) = 96,485 Cmol Intracellular:...
You are studying neurons in the lab by growing them in culture (in a petri dish outside the body)
You are studying neurons in the lab by growing them in culture (in a petri dish outside the body). You grow them in an incubator at 37 degrees C. With this experimental setup, you can easily change the extracellular ion concentrations by switching the cell culture medium (the fluid that surrounds the cells).Intracellular concentrationMedium 1 (extracellular concentration)Medium 2 (extracellular concentration)K+140 mM4.5 mM50 mMNa+10 mM135 mM100 mMCl-12 mM125 mM120 mMa.If you switch from Medium 1 to Medium 2, will the intracellular...
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...
4. (30 pts) The following passages were obtained from the clinical reference website, Oncology Dilution Database...
4. (30 pts) The following passages were obtained from the clinical reference website, Oncology Dilution Database (http://www.globalrph.com/cisplatin.htm) for the drug, cisplatin/Platinol AQ. This formulation of the drug (Platinol AQ) is an aqueous solution of cis-[PtCl2(NH3)2] containing 3.3 mM drug and 154 mM Naci (normal saline solution) at a pH of 3.5-4.5. a. A passage on the website states, "Note: Needles or intravenous sets containing aluminum parts that may come in contact with cisplatin should not be used for preparation or...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form...
During the aerobic metabolism of glucose, glucose is ____________. Reduced to form water Oxidized to form water Reduced to form CO2 Oxidized to form CO2 Which of the following describes the equation: FAD + XH2 à FADH2 + X. FAD is reduced to FADH2 It is a coupled reduction – oxidation reaction XH2 is oxidized to X All of the above Which of the following is FALSE about glycolysis? The initial steps of glycolysis requires energy derived from the splitting...
The data in the following table were collected from cortical neurons of a rat. Use this information to answer the questions. Ion Intracellular Concentration (mM) Extracellular Concentration (mM) Permeability in Neurons K* Nat Cr 150 15 10 100 160 120 0.002 0.05 0.45
please explain steps and show work
no pictures were provided. table 3.13 is given above.
3.46 The cell membrane is covered with protein complexes called Na-K+ pumps. Each pump moves 3 Nations from the intracellular space to the extracellular milieu for every 2 K ions it moves into the cell. During normal function, the pumps work constantly. Under normal conditions, there is a gradient of Nat and K ions between the cell and the extracellular space; the concentrations of these...
Scenario: You will participate in a research project
that involves working with neurons that are kept in cell culture.
These neurons are well established cell model and their
intracellular and extracellular environments are known. Required
parameters are listed in the table below. All your experiments will
be carried out at 20 ?C.
Calculate equilibrium potentials E for all ion species
listed in the table below, as well as the resulting membrane
resting potential VM.
But some calculations first! Intracellular Concentration...
According to biophysics
As a result of an experiment following measurements were obtained from a cell: intracellular Na* concentration of 10 mm, intracellular K* concentration of 140 mm, intracellular Cl' concentration of 5 mm, interstitial Na* concentration of 150 mm, interstitial K concentration of 5 mm, interstitial Cl' concentration of 120 mm, relative potassium/sodium permeability of 32. Using these values calculate membrane potential of these cells. (RT/F = 26.7 mV, 37°C) (5 pts). Select one: a. -71 mV b. +71...
15. Given the following concentrations of ions in the intracellular and extracellular fluids of a cell; inside the cell: Na+ 12mM. K+ 150mM, CI-9mm, Ca2+0.0001mM and outside the cell: Na+ 145mM, K+ 5mM, CI- 125mM, and Ca2+ 2.5mM. Calculate the equilibrium potential for K+ (Ek) if its extracellular concentrations rise from 5 mM to 10 mM. Use the Nernst equation and the ion concentration to perform the following calculation. Comparing this to the normal Ek, is the change a depolarization...
please write thorough answers thanks
PART 1 Answer ONLY ONE of the following TWO questions of Part 1 ie a) OR b) a) A typical, healthy nerve cell in the body has intracellular and extracellular Na, K and Cl' concentrations as shown below. Na concentration: Extracellular: = 150 mm K concentration: Extracellular: = 4 mm Ci concentration: Extracellular: = 100 mm Temperature = 37°C (303.3K) R (the Universal Gas constant) = 8.315 VCmol'k F (Faraday's constant) = 96,485 Cmol Intracellular:...
4. (30 pts) The following passages were obtained from the clinical reference website, Oncology Dilution Database (http://www.globalrph.com/cisplatin.htm) for the drug, cisplatin/Platinol AQ. This formulation of the drug (Platinol AQ) is an aqueous solution of cis-[PtCl2(NH3)2] containing 3.3 mM drug and 154 mM Naci (normal saline solution) at a pH of 3.5-4.5. a. A passage on the website states, "Note: Needles or intravenous sets containing aluminum parts that may come in contact with cisplatin should not be used for preparation or...
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