3. For the problem in Sample Calculation 10-1, calculate AG at 37\deg Cwhen the membrane potential is (a) -50 mV (cytosol negative) andgap junction 305uniport 309ABC transporter 314(b) + 150 mV. In which case is Ca?* movement in the indicated direction thermodynamically favorable?
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The goal is to determine which condition makes the movement of CaĀ²āŗ thermodynamically favorable. Show moreā¦
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For the problem in Sample Calculation $10-1,$ calculate $\Delta G$ at $37^{\circ} \mathrm{C}$ when the membrane potential is (a) $-50 \mathrm{mV}$ (cytosol negative) and (b) $+150 \mathrm{mV}$. In which case is $\mathrm{Ca}^{2+}$ movement in the indicated direction thermodynamically favorable?
Q4. (10 pts) The concentration of Ca2+ in the endoplasmic reticulum (outside) is 1 mM, and the concentration of Ca2+ in the cytosol (inside) is 0.1 Ī¼M. Calculate ĪG at 37 Ā°C when the membrane potential is (a) ā50 mV (cytosol negative) and (b) +50 mV (cytosol positive). In which case is Ca2+ movement more thermodynamically favorable?
Adi S.
The concentration of Ca2+ in the endoplasmic reticulum (outside) is 1 mM, and the concentration of Ca2+ in the cytosol (inside) is 0.1 Ī¼M. A) Calculate ĪG at 37Ā°C when the membrane potential is -50 mV (cytosol negative). Express your answer in units of kJ mol-1 using 3 significant figures. B) Calculate ĪG at 37Ā°C when the membrane potential is +50 mV. Express your answer in units of kJ mol-1 using 3 significant figures. C) In which case is Ca2+ movement more thermodynamically favorable? (CORRECT ANSWER IS: Both conditions are favorable, with the conditions under negative membrane potential being more favorable.)
Josee P.
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