The Equilibrium Potential for a Cation Is +120 MV

question 87

Multiple Choice

The equilibrium potential for a cation is +120 mV. Which of the following statements is TRUE when a cell is at the resting membrane potential ( -70 mV) ?

• A) The chemical force is directed into the cell and the electrical force is directed out of the cell.
• B) Both the chemical and electrical forces are directed out of the cell.
• C) The chemical force is directed out of the cell and the electrical force is directed into the cell.
• D) Both the chemical and electrical forces are directed into the cell.
• E) There is insufficient information to answer this question.

---

Definitions:

Break-even Point

The production level or sales volume at which total revenues equal total expenses, resulting in no net profit or loss.

Sensitivity Analysis

An approach to assess how different values of an independent variable affect a specific dependent variable under a given set of assumptions.

CVP Analysis

Cost-Volume-Profit Analysis, a tool that helps managers understand the relationship between cost, volume, and profit by identifying the break-even point or targeted profit output.

Breakeven Chart

A graphical representation that shows when total cost and total revenue are expected to be equal, indicating no net loss or gain.