For a particular cell at 25 C, the concentration of sucrose is 10 mM on the insi

Question

For a particular cell at 25 C, the concentration of sucrose is 10 mM on the inside of the cell and 0.5 mM on the outside, whereas the concentration of sodium ions (Na+) is o.5 mM on the inside of the cell and 10 mM on the outside. The membrane potential is -150 mV. constants: R = 1.987 cal/mol-K: = 25°C = 298 K; F = 23,062 cal/mole-volt 7, what is the G for the inward transport of sucrose? 8. What is the 6for the inward transport of sodium ions? 9. What would be the net 6for the coupling of these two reactions?

Explanation / Answer

7. Given,

R = 1.987 cal/mol degree

T = 25°C = 298 K;

Also, membrane potential is -150 mV, and temperature= 25°C.  

concentration of sucrose on the inside= 10 mM

on the outside of the cell = 0.5 mM

delta G = R x T x In [Concentration inside the cell/concentration outside the cell]

=1.987 x (25 +273) x In [10/ 0.5]

=2 x 298 x In20

= 596 x 1.301

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.