Why Does an Electrical Charge or Membrane Potential Exist Across

question 29

Multiple Choice

Why does an electrical charge or membrane potential exist across nerve cell membranes?

• A)The cell membrane is permeable to sodium ions.
• B)The cell membrane allows more positively charged ions to leak out of the cell than to leak in.
• C)The membrane is impermeable to all ions.
• D)Water can flow freely across the membrane.

---

Definitions:

Crash Budget

An extreme budgeting method used to significantly reduce spending or development time, often under tight deadlines or financial constraints.

Crash Duration

The shortest possible time for completing an activity by allocating it the maximum efficient resources, often resulting in increased costs.

Crash Cost

The expense associated with reducing the time on a project activity or task, typically higher than normal costs, for faster completion.