I need both questions answered please. Thank you in advance for all of your help

Question

I need both questions answered please. Thank you in advance for all of your help.

Which of the following is FALSE about the resting membrane potential? The magnitude of the resting membrane potential is negative inside the cell relative to the outside the cell. The resting membrane potential is negative because the intracellular concentration of sodium (Na^+) is higher than the intracellular concentration of potassium (K^+). It is the steady transmembrane potential of a cell that is not producing an electrical signal. In mammalian cells, the value of the resting membrane potential is mainly determined by the permeability of K^+. The Nernst equation can describe the membrane potential at which the chemical and electrical fluxes become equal in magnitude but opposite in direction for a particular ion. True False

Explanation / Answer

1) The resting membrane potential is mainly determined by the permeability of the membrane to potassium ions. The concentration of potassium is higher inside the cell than outside. The inside of the cell is negative when compared with the outside. Sodium is mainly extracellular. So, the answer for this question is option 2 (The resting membrane potential is negative because intracellular concentration of sodium is higher than the intracellular concentration of potassium).

2) Nernst equation describes the membrane potential at which the chemical and electrical fluxes become equal in magnitude but opposite in direction for a particular ion. So, the given statement is true.

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

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