What Causes Potassium Ions to Leave the Axon Just After

question 204

Multiple Choice

What causes potassium ions to leave the axon just after the peak of the action potential?

• A) a continuing concentration gradient and the opening of the potassium gates
• B) an increase in the concentration gradient across the membrane
• C) increased tendency of the sodium-potassium pump to pump potassium out
• D) binding of potassium ions to proteins that leave at this time

---

Definitions:

Interest

The cost of borrowing money, typically expressed as a percentage of the sum borrowed, or the income earned from lending money.

Aging of Receivables

Aging of receivables is an accounting method used to estimate the amount of a company's accounts receivable that may not be collectible, represented in time categories based on the length of time the invoices have been outstanding.

Allowance for Doubtful Accounts

A contra-asset account used to estimate the portion of a company's receivables that may not be collected.

Bad Debt Expense

A ledger showing the value of invoices that a business anticipates it will not be able to receive payment for.