Chapter 11B

Which type of gated channels will open in response to binding of the appropriate neurotransmitter?

• voltage-gated ion channels

• chemically gated ion channels

• leakage ion channels

What does 3 represent?

• resting state

• repolarization

• depolarization

• hyperpolarization

Tags

NGSS.HS-PS2-5

There is a higher concentration of ____ on the outside of the cell and a higher concentration of ____ on the inside.

• K+; Na+

• Ca+; K+

• Na+; K+

• Na+; Ca+

Tags

NGSS.HS-LS1-3

Sodium potassium pump:

• pumps 2 Na+ out; pumps in 2 K+

• pumps in 3 Na+; pumps out 2 K+

• pumps out 3 Na+; pumps in 3 K+

• pumps out 3 Na+; pumps in 2 K+

Tags

NGSS.HS-LS1-3

What does 4 represent?

• resting state

• repolarization

• depolarization

• hyperpolarization

What event is this: Na+ channels open

• hyperpolarization

• resting state

• repolarization

• depolarization

Tags

NGSS.HS-PS2-5

What event is this: some K+ channels remain open, and Na+ channels reset

• hyperpolarization

• resting state

• repolarization

• depolarization

Ensures that each AP is an all-or-none event

• absolute refractory period

• relative refractory period

What does 1 represent?

• resting state

• repolarization

• depolarization

• hyperpolarization

What event is this: All gated Na+ and K+ channels are closed

• hyperpolarization

• resting state

• repolarization

• depolarization