An Action Potential Occurs

question 19

Multiple Choice

An action potential occurs

• A) if the membrane potential reaches a threshold value.
• B) when negative proteins and ions rapidly enter the cell.
• C) when the inside of the cell becomes negative compared to the outside.
• D) when there is repolarization.
• E) All of these are correct.

---

Definitions:

Flash Cards

Learning tools consisting of cards with information on them, used for memorization and study of facts, vocabulary, or concepts.

Educational Video

A video designed with the primary purpose of educating viewers on specific topics or skills.

Naturalistic Observation

A research method in which subjects are observed in their natural environment without any manipulation by the experimenter.

Children's Museum

An institution designed to provide interactive, educational exhibits and activities geared towards children and their families.