Explain the Functioning of an Ion Pump, and Give an Example

question 37

Essay

Explain the functioning of an ion pump, and give an example of one in the plasma membrane. Why are they considered active transport mechanisms?

---

Definitions:

Retained Earnings

The portion of net income not distributed to shareholders and instead reinvested in the company or used to pay off debt.

Common Stock

A type of security that represents ownership in a corporation, with voting rights and potential for dividends.

Stated Value

A value assigned to no-par value stock by the board of directors of a company and used for accounting purposes.

Paid-In Capital in Excess of Par

The amount received by a company from selling its shares above their par value.