Mod 2 Essay Prompts Fundamentals

changes in membrane potential

Voltage-gated ion channels are activated by ____

Ligand-gated ion channels

____ are activated by ligands binding to their receptors.

Extracellular ligand-gated ion channels

____ are activated when a ligand binds to their extracellular surface.

Intracellular ligand-gated ion channels

____ are activated when ligands bind to their intracellular surface.

Neurotransmitters

____ are a type of ligand that could bind to extracellular ligand-gated ion channels

Calcium

____ can activate intracellular ion channels

inside-out patch

The ____ recording method would do best when investigating an intracellular, ligand-gated channel.

recording pipette

the ____ makes tight contact with the membrane where the channel is located.

mild suction

The pipette applies ____ and removes the patch from the cell, making the intracellular surface exposed to recording media.

resting phase

At the ____, the voltage-gated ion channels are more permeable to potassium than sodium.

depolarization phase

In the ____, the permeability of sodium increases.

repolarization phase

In the ____, the permeability to sodium decreases.

hyperpolarization phase

In the ____, the permeability to potassium increases.