AP1 9.3 Neuron Function POGIL Quiz

When a ligand-gated channel opens,​ (a)   ions diffuse ​ (b)   the cell.

• sodium
• into
• potassium
• out of

When a voltage-gated sodium channel opens,​ (a)   ions diffuse ​ (b)   the cell.

• sodium
• into
• potassium
• out of

Voltage-gated sodium channels open at (a)   and close at​ (b)   .

• -55mV
• +35mV
• -70mV
• -80mV
• 0mV

When a voltage-gated potassium channel opens, ​ (a)   ions diffuse ​ (b)   the cell.

• into
• potassium
• out of
• sodium

Tags

NGSS.HS-LS1-3

Voltage-gated potassium channels open at (a)   and close at​ (b)   .

• -55mV
• +35mV
• -70mV
• -80mV
• 0mV

Identify the two points that represent the resting membrane potential.

Identify the point that indicates the depolarization phase of an action potential.

Identify the point that indicates the refractory period of an action potential.

Identify the point that indicates the time period in which voltage-gated sodium channels are closed but potassium channels are open.

Tags

NGSS.HS-PS2-5

Identify the point that indicates the time period in which active transport is the predominant mode of ion transport across the neuron's membrane.