Use the appropriate equation to calculate the free energy change for the movement of Natinto the depolarized nerve cell where the membrane potential is +50mV and the Nain/Naoutratio is 7.3/1. Assume the temperature is 37°C.Stop! For full credit:1. Enter your answer in kJ, kilojoules.2. Do not put units in the box.3. Round your answer to the nearest tenth. If your calculator permits, do not round untilthe end for the sake of continuity.4. If your answer is negative, include the sign and number with no space.

The Nernst equation, named after Walther Nernst, is a powerful tool in electrochemistry that relates…

Answered: Use the appropriate equation to…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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In the Nernst equation [V = 62 log10 (Co / Ci)], the term Co represents: cell bio the intracellular concentration of calcium the extracellular concentration of potassium the extracellular concentration of sodium the intracellular concentration of potassium the membrane potential (in millivolts)
A.What is the Result of the sodium potassium ATPase activity in the cell? B.What mechanism does the sodium potassium ATPase use to achieve this result? C. Why is the above-mentioned change in affinity critical for the sodium potassium ATPase to perform its function?
Suppose the concentration of glucose inside a cell is 0.4 mM and the cell is suspended in a glucose solution of 0.03 mM. Part A What would be the free energy change, in kJ/mol, for the transport of glucose from the medium into the cell? Assume T= 37°C. Express your answer with the appropriate units. HÅ AG = Value Units wwwww ? Submit Previous Answers Request Answer × Incorrect; Try Again; 3 attempts remaining Part B What would be the free energy change, in kJ/mol, for the transport of glucose from the medium into the cell if the intracellular and extracellular concentrations were 4 mM and 16 mM, respectively? Express your answer with the appropriate units. AG = ☐ HÅ Value Units ?
I need help please
In the situations described below, what is the free energy change if 1 mole of Na+ is transported across a membrane from a region where the concentration is 48 μM to a region where it is 110 mM? (Assume T=37∘C.) When the transport is opposed by a membrane potential of 70 mV.
The sarcoplasmic reticulum Ca2+-ATPase, pumps 2 mol Ca2+ out of sarcomeres per mol ATP hydrolyzed. Given the following steady-state concentrations and a membrane potential of 67 mV (inside negative), calculate ΔG for the following active transport process at 37 ∘C and pH=7.4:2Ca2+(in)+ATP+H2O→2Ca2+(out)+ADP+Pi+H+
Given a matrix pH of 7.8 and an inner mitochondrial membrane pH of 7.06, calculate the Nernst potential across the IMM in a lizard cell that is 27 degrees C.
Carbonic anhydrase of erythrocytes (Mr 30,000) has one of the highest turnover numbers known. It catalyzes the reversible hydration of CO₂. H₂O + CO₂ 2 H₂CO3 This is an important process in the transport of CO₂ from the tissues to the lungs. If 5 µg of pure carbonic anhydrase catalyzes the hydration of 0.35 g of CO₂ in 1 min at 37 °C at Vmax, what is the turnover number (kcat) of carbonic anhydrase? Kcat 2.0466 ×107 Incorrect min-1
Not too sure if my answer is correct.
A one-to-one protein (P)-ligand (L) complexation (P + L PL) has a dissociation equilibrium constant (Kd) value of 100 nM at 25°C, and the Kd remains the same at 37°C. 1) What is AS of binding at 25°C? Assume ACp of the binding is 0 over the temperature range. AS = 1.34E2 kJ/(mol*K) (note the unit!!) (sig. fig =3) 2) What is the concentration of the PL complex formed at equilibrium when you mix 0.20 uM (microM) of Protein and 1.0 uM of Ligand together at 37°C? PL at equilibrium = 8.1E-1 uM (note the unit!!) (sig. fig =2)
In he or sti ne eti 39. Why do activated states rarely occur at physiological temperatures? How do cells overcome this?
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