Leak Ion Channels

question 33

Multiple Choice

Leak ion channels:

• A) open in response to changes in the membrane potential
• B) are always open
• C) open in response to neurotransmitters or other chemicals
• D) are closed until opened by specific signals
• E) are responsible for the generation of the action potential in neurons

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Definitions:

Rate of Return

The capital gain or loss realized on an investment over an allocated period, defined as a percentage of the investment’s preliminary cost.

Per Month

A time frame reference indicating occurrences or measurements within a calendar month.

Effective Annual Rate

A financial metric that represents the equivalent annual interest rate taking compounding into account, thus providing a more accurate measure of interest earned or paid over a year.

Compounded Semi-Annually

Interest on an investment is calculated and added to the principal sum of the investment two times a year.