Concept #1: Membrane Transport of Ions

Concept #2: Charged Ions Flow Down Electrochemical Gradients

Concept #3: Transmembrane Potential

Concept #4: Membrane Transport of Ions Recap

Concept #5: Types of Ion Channels

Practice: Which of the following describes ion channels that are coupled to membrane receptors, such that their gating (opening or closing) is altered by messenger binding?

Practice: Facilitated diffusion of charged ions across a biological membrane is __________________:

Practice: Which of the following statements is false about a signal-gated ion channel receptor?

Practice: The voltage-gated potassium channels associated with an action potential provide an example of what type of membrane transport?